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Solving pedigree genetics problems
 
12:27
Once you have a background in pedigree conventions, this video should provide you with the tools to evaluate a pedigree to determine if a given trait could be autosomal dominant, autosomal recessive, or X-linked recessive.
Views: 267570 BiologyMonk
Pedigrees
 
09:42
Explore autosomal recessive trait and X-linked recessive trait tracking in pedigrees with the Amoeba Sisters! Matching handout available here: http://www.amoebasisters.com/handouts.html. See table of contents by expanding details! 👇 Table of Contents: Introducing Symbols/Numbering in Pedigree 0:40 Meaning of Shading in Shapes 1:19 Introducing Pedigree Tracking Autosomal Recessive Trait 2:44 Working with Pedigree Tracking Autosomal Recessive Trait 4:07 X-Linked Pedigree 6:45 What is Meant by "Half-Shading" Shapes in Pedigree? 9:01 Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 547208 Amoeba Sisters
Pedigree Analysis methods - dominant, recessive and x linked pedigree
 
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Pedigree analysis by suman bhattacharjee - This lecture explains about the different rules of pedigree analysis. It explains how to find a pedigree based on characteristics with examples as dominant pedigree, recessive pedigree and x linked pedigree. Dominant inheritance - affect shown in every generation recessive inheritance - skips generation X linked recessive trait - Male offspring are affected more. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching
Views: 118199 Shomu's Biology
Pedigree Analysis 1: How to solve a genetic pedigree No. 1
 
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Biology teacher Andrew Douch explains how to systematically study a genetic pedigree, to determine the most likely mode of inheritance.
Views: 730363 Andrew Douch
Pedigree analysis | How to solve pedigree problems?
 
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Pedigree analysis technique and rule - This lecture explains how to solve pedigree problems. With the help of few easy tricks and techniques you can solve any pedigree problems in minutes by applying the knowledge of pedigree analysis described in this video lecture. So watch this video and solve pedigree problems fast. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching the genetics lecture on Pedigree analysis and How to solve pedigree problems?
Views: 322665 Shomu's Biology
How to solve pedigree probability problems
 
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More of my videos on the topic: How to read a pedigree like a pro https://www.youtube.com/watch?v=5OlpOEC9vQ8 How to read a pedigree like a pro - 2 https://www.youtube.com/watch?v=Vxl-18BaUag How to read a pedigree like a pro - 3 https://www.youtube.com/watch?v=0pYj00896p4 How to read a pedigree like a pro - 4 https://www.youtube.com/watch?v=kHlxYBlM3fA How to read a pedigree like a pro - 5 https://www.youtube.com/watch?v=3Dia_W0ky-I How to read a pedigree like a pro - 6 https://www.youtube.com/watch?v=0CXI3r0NC2Q A pedigree chart is a diagram that shows the occurrence and appearance or phenotypes of a particular gene or organism and its ancestors from one generation to the next, most commonly humans, show dogs, and race horses. The word pedigree is a corruption of the French "pied de grue" or crane's foot, because the typical lines and split lines (each split leading to different offspring of the one parent line) resemble the thin leg and foot of a crane. A Pedigree results in the presentation of family information in the form of an easily readable chart. Pedigrees use a standardized set of symbols, squares represent males and circles represent females. Pedigree construction is a family history, and details about an earlier generation may be uncertain as memories fade. If the sex of the person is unknown a diamond is used. Someone with the phenotype in question is represented by a filled-in (darker) symbol. Heterozygotes, when identifiable, are indicated by a shade dot inside a symbol or a half-filled symbol. Relationships in a pedigree are shown as a series of lines. Parents are connected by a horizontal line and a vertical line leads to their offspring. The offspring are connected by a horizontal sibship line and listed in birth order from left to right. If the offspring are twins then they will be connected by a triangle. If an offspring dies then its symbol will be crossed by a line. If the offspring is still born or aborted it is represented by a small triangle. Each generation is identified by a Roman numeral (I, II, III, and so on), and each individual within the same generation is identified by an Arabic number (1, 2, 3, and so on). Analysis of the pedigree using the principles of Mendelian inheritance can determine whether a trait has a dominant or recessive pattern of inheritance. Pedigrees are often constructed after a family member afflicted with a genetic disorder has been identified. This individual, known as the proband, is indicated on the pedigree by an arrow.
Genotypes and pedigrees
 
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How to determine a genotype from a pedigree
Views: 717 Kaitlyn Summers
Pedigree Analysis 2: How to solve a genetic pedigree.  Example No. 2
 
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Biology teacher Andrew Douch, looks at another pedigree, and explains some of the more subtle aspects of pedigree analysis.
Views: 191012 Andrew Douch
Pedigree analysis- autosomal dominant
 
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This video about pedigree analysis explains how to analyze pedigree charts and family tree studies for autosomal dominant inheritance of a disease. For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 83032 Shomu's Biology
Pedigree
 
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Dr. Phoenix shows how to read pedigrees and how to determine the genotypes of individuals on the pedigree. Please click the link to go to the updated version of this video here: https://youtu.be/r2WRipen-do
Views: 16737 Glenn E Phoenix, DC
Pedigree Notes   Analyzing the Genotypes
 
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This video walks you through how to determine the genotypes of a person based on a pedigree.
Views: 2229 Katie D
Autosomal Recessive vs. Autosomal Dominance
 
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This video will compare and contrast autosomal recessive and autosomal dominance inheritance patterns. Keywords: Genetics Gene Allele Heredity Punnett square Genotype Phenotype Homozygous Heterozygous Cystic fibrosis Sickle cell PKU Albinism Huntington's disease Mendel Autosome Chromosome Karyotype Inheritance
Views: 87660 Beverly Biology
Interpreting Pedigree Charts
 
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Pedigree charts can be used to determine if an inherited trait is dominant or recessive and if it is X-linked or autosomal.
Views: 2295 Tom Koch
Pedigree probability problems | Risk calculation
 
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Pedigree probability problems - lecture explains about how to solve genetics probability problems on pedigree analysis . this video lecture explains the Pedigree probability problems with example. Here I will share the trick about how to solve those Pedigree problems associated with probability. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching the genetics lecture on how to solve Pedigree probability problems.
Views: 66873 Shomu's Biology
Autosomal and X Linked Inheritance
 
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This lecture explains about the the autosomal and x linked inheritance. This video explains the properties of sex linked inheritance and the genetics pedigree. Autosomal trait is the one where the gene responsible for the trait is carried by Autosomes or body cell chromosomes. Sex linked trait or X linked trait is the one where the gene responsible for the trait is carried by X chromosomes. So most of the X linked trait is predominant ion male as males have only one X chromosome. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching the video lecture on Autosomal and X Linked Inheritance.
Views: 72178 Shomu's Biology
Pedigrees | Classical genetics | High school biology | Khan Academy
 
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An introduction to reading and analyzing pedigrees. View more lessons or practice this subject at https://www.khanacademy.org/science/high-school-biology/hs-classical-genetics/hs-pedigrees/v/pedigrees?utm_source=youtube&utm_medium=desc&utm_campaign=highschoolbiology Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
Views: 35334 Khan Academy
Pedigrees, Patterns of Genetic Inheritance, Autosomal Dominant Recessive X-Linked Mitocondrial
 
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http://www.stomponstep1.com/pedigrees-patterns-of-genetic-inheritance/ Before you watch this video you should really watch the previous video in the section which covers Types of Inheritance (http://www.stomponstep1.com/genetic-inheritance-autosomal-dominant-x-linked-recessive-mitochondrial-disease/) Pedigrees are graphical representations of ancestry with respect to one or more disease(s). Males are represented with a square while females are represented with a circle. The shape is black/filled in if the individual is affected by the disease. The shape is empty/white if the individual is not affected by the disease (may be unaffected or carrier). Usually each generation (row) is labeled with a roman numeral while each individual is labeled with a number. Autosomal Dominant Autosomal recessive X linked recessive Mitochondrial Now that you are done with this video you should check out the next video in the Genetics section which covers Purine Salvage Pathway & Lesch-Nyhan Syndrome(http://www.stomponstep1.com/purine-salvage-pathway-lesch-nyhan-syndrome/)
Views: 110821 Stomp On Step 1
Inheritance Patterns | Reading Pedigree Charts
 
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Download the free flowchart Colored: https://drive.google.com/open?id=1bvQcJjnybMXrIfOf1RmL-JOQtD0KKhcj Black & White: https://drive.google.com/open?id=1WfI3GLJrlN0b7IVhNClAJqzOX9oPsY1h ---RECOMMENDED STUDY GUIDES--- Genetics: https://amzn.to/2BzK1S2 Biology I: https://amzn.to/2SasaIl Biology II: https://amzn.to/2EKKGEv Biology terminology: https://amzn.to/2BBHuXo ---STUDY RESOURCES--- 10 Steps to Earning Awesome Grades: https://amzn.to/2CU4vHc How to Become a Straight-A Student: https://amzn.to/2VCfWdG ---VIDEOS AND PLAYLISTS--- Test tips and tricks: https://bit.ly/2VAnjTb Eukaryotic vs Prokaryotic Cells: https://bit.ly/2QDqkOY Plant cell vs Animal cell: https://bit.ly/2M10y6j Smooth ER: https://bit.ly/2FpvYD4 ---DIVE IN--- Follow me on Twitter: https://twitter.com/2MinuteClasroom Get Involved with the 2 Minute Classroom Community: https://bit.ly/2QvgbYy Subscribe to 2 Minute Classroom: https://bit.ly/2PdkPpk Find more at https://www.2minuteclassroom.com ---MY GEAR--- My mic - Blue Yeti Microphone: https://amzn.to/2Q6PoCc Full kit - Blue Yeti Microphone kit: https://amzn.to/2Q1lM9o GTX Graphics Card: https://amzn.to/2Pcygpp Animation Software: https://www.videoscribe.co/en/ DISCLAIMER: This video and description contains affiliate links, which means that if you click on some of the product links, I’ll receive a small commission. This helps support the channel and allows us to continue to make videos like this. Thank you for your support! Thanks for stopping by, today we are going to discuss how to determine inheritance patterns, so essentially how to read a pedigree chart. Like this one. If you are unfamiliar with pedigree charts or Mendelian genetics, you should watch some other videos before this one. We are going to create a flowchart to solve pedigrees, so you’ll simply take any given pedigree chart through a series of questions until you determine the inheritance pattern. And a note here, this flowchart we are going to build has a high degree of accuracy, but is not foolproof, the random nature of genetics make it impossible to be 100%. So let’s get started, the first two questions you’ll ask are, Are only males affected? AND are all sons of an affected father affected? If the answer is yes, then the pattern is Y linked, meaning a genetic disorder affiliated with the y chromosome. Only males possess a Y chromosome, so that means all males receive their Y chromosome from their father. A Y linked trait will never show up in males without affected father. If you reach this point, you have your solution. If the answer is no, Then we ask if there are there any cases were affected children do not have at least one affected parent. If yes, it’s recessive though we don’t know what type. Being recessive, they must have two affected alleles in order to express the disorder, therefore, an affected child can have unaffected parents because they're both carries. However, it is possible that their parents could still be affected. If the answer is no, then it is a dominant disorder, and thus an affected child must have an affected parent. You should note that dominant patterns usually see someone affected in every generation in each affected linage, this means that once you see an affected parent, you will usually see it in every generation thereafter. It doesn’t skip generations very often. Moving down the recessive line we need to ask two more questions. Are all sons of affected mother infected? And are more males affected in general? If yes, it is X-linked recessive, meaning it’s attached to the X chromosome, since males only have one X chromosome, they are more likely to show, whereas females have two Xs, so a good one can mask the mutated one. Also, Males always receive their X chromosome from their mother, so if she is affected, she will have two X chromosomes with the mutation, and all sons are guaranteed to end up with it. If the answer is no, then it is autosomal recessive by default. Essentially, males and females are affected evenly, and affected mothers have unaffected sons. Moving on down the dominant line, we ask Are all of the daughters of an affected father affected? If yes, then it is X linked dominant, males only have one X chromosome, which goes to their daughter, so all their daughters will have that mutation. If no, then it is autosomal dominant by default. If there is a case where an affected father has an unaffected daughter, or an affected daughter has an unaffected father, you know it can’t be X linked, because the father only has one X and that will always to go to the daughter. So this is the whole flow chart, eventually I’ll make a website and have a downloadable PDF available. I’ll link that in the comments whenever I get to making it. In the meantime, subscribe to my channel so that you’re around when I do create my website. Thanks for watching, I’ll catch you next time.
Views: 9932 2 Minute Classroom
Determining Inheritance Patterns - Genetics Pedigree Analysis
 
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Watch the updated video, it's shorter! https://www.youtube.com/watch?v=1SZEXbBcYCc This video is a flowchart walk-through for determining inheritance patterns of genetic disorders from a pedigree chart.
Views: 11290 VirgilARicks
Calculating probabilities
 
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This video summarizes how to calculate probabilities when approaching pedigree and inheritance problems in Genetics.
Views: 25194 Dr. Marina Crowder
How to read a pedigree
 
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Dr. Phoenix discusses how to read a pedigree chart and how to determine the genotypes of the individuals on the chart.
Views: 1306 Glenn E Phoenix, DC
Pedigree for determining probability of exhibiting sex linked recessive trait | Khan Academy
 
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Pedigree for determining probability of exhibiting sex linked recessive trait. View more lessons or practice this subject at https://www.khanacademy.org/science/high-school-biology/hs-classical-genetics/hs-pedigrees/v/pedigree-for-determining-probability-of-exhibiting-sex-linked-recessive-trait?utm_source=youtube&utm_medium=desc&utm_campaign=highschoolbiology Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
Views: 9836 Khan Academy
Heterozygous/Carrier and Pedigrees
 
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Review of X-linked traits and heterozygous and Pedigrees
Views: 1839 Newbold-Videos
Pedigree analysis - autosomal recessive
 
07:37
This video about pedigree analysis explains how to analyze pedigree charts and family tree studies for autosomal recessive inheritance of a disease. For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 20487 Shomu's Biology
Inheritance of autosomal dominant trait
 
03:58
A genetic carrier (or just carrier), is a person or other organism that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease. Carriers are, however, able to pass the allele onto their offspring, who may then express the gene if they inherit the recessive allele from both parents. The chance of two carriers having a child with the disease is 25%. This phenomenon is a direct result of the recessive nature of many genes. Punnett square depicting a cross between two genetic carriers. The chance of two genetic carriers having a child with two copies of the recessive gene, thus being homozygous recessive, is 25%. Examples: - Cystic fibrosis - Sickle cell anemia
Punnett Squares and Sex-Linked Traits
 
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Explore inheritance when carried on the X chromosome with the Amoeba Sisters! This video has a handout here: http://www.amoebasisters.com/handouts.html This video focuses on how to do general Punnett square problems that involve traits on the sex chromosomes (X and Y chromosomes). We do want to point out though that when it comes to biological sex- it can be influenced by more than just sex chromosomes X and Y. For example, the SRY gene, plays a major role in human biological sex determination. While this video only focuses on solving sex-linked trait problems in a Punnett square, here are some further reading suggestions to learn about the SRY gene and its role in biological sex. Further Reading Suggestions: (Updated 2018)********** About SRY Gene from NIH: https://ghr.nlm.nih.gov/gene/SRY About SRY and Sex Determination from Harvard: http://sitn.hms.harvard.edu/flash/2016/im-xy-know-sex-determination-systems-101/ *************************************************************** Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 817348 Amoeba Sisters
Learn Biology: How to Draw a Punnett Square
 
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Check out Bas Rutten's Liver Shot on MMA Surge: http://bit.ly/MMASurgeEp1 A Punnett square is used to predict the chances of an offspring to have its parents' traits. These squares are most commonly divided into four parts, with each part equalling a 25% chance of the offspring receiving that set of genes. More complicated squares may have more than four parts, though the same basic method applies. The letters surrounding and within each square represent alleles. They are one part of a gene pair occupying a specific part of a chromosome. All dominate alleles have capital letters, while the recessive ones are lowercase. Dominate alleles will always overpower recessive ones in the expression of the gene. If the alleles for a parent do not match, they are known as heterozygous. In the image above the Gg is heterozygous. This can happen if there is a dominate and a recessive gene in the parent. If the alleles are the same for that expressed gene, it is known as homozygous. This is seen if both alleles are dominate or if both alleles are recessive; e.g., GG or gg. In order for a recessive gene to be expressed, the alleles must be homozygous. Step 1: --------------------------------------------------------------------- Draw the Punnett square. This is done by drawing a square, followed by a straight line up and down and another from side to side. This will quarter, or create 4 equally sized boxes within the square. Step 2: --------------------------------------------------------------------- Place the father's alleles on the top of the Punnett square with one letter above each box. Place the mother's alleles on the left hand side of the square, with one letter in front of each box. Be sure to use capital letters for the dominate genes and lower case letters for the recessive alleles. For this example, let's say this square represents the color of a flower. The father has one dominant blue and one recessive orange allele. The mother has two recessive orange alleles. Step 3: --------------------------------------------------------------------- Drop the father's alleles down into the squares and bring the mother's across. This will provide you with all possible combinations of alleles for the offspring. Each square represents a 25% chance of the offspring having that combination. If there are squares with the same cominations in them, the squares can be added together to determine the percentage. Conclusion: --------------------------------------------------------------------- From the completed square above, we can see that 50% of offspring will be blue since any dominant allele paired with a recessive one will win. There are, however, two homozygous combinations in which both genes are recessive, so 50% of the offspring will be orange. This means that half of the offspring will be blue, while the other half will be orange. Easy, right? Read more by visiting our page at: http://www.mahalo.com/how-to-draw-a-punnett-square/
Views: 1133204 mahalodotcom
Heredity: Crash Course Biology #9
 
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Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook! http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter! http://www.twitter.com/TheCrashCourse This video uses sounds from Freesound.org, a list of which can be found, along with the REFERENCES for this episode, in the Google document here: http://dft.ba/-2dlR tags: crashcourse, science, biology, evolution, genetics, heredity, aristotle, bloodlines, gregor mendel, mendelian genetics, mendelian trait, classical genetics, chromosome, gene, polygenic, pleiotropic, allele, ear wax gene, somatic, diploid, gametes, sperm, egg, haploid, polyploid, dominance, dominant, recessive, heterozygous, homozygous, phenotype, punnett square, reginald c. punnett, sex-linked inheritance, autosome Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 3015992 CrashCourse
How to Interpret Pedigrees for AP Biology
 
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Erika Tan walks through a sample pedigree diagram. *** If there are any pictures used in this video, they are NOT MINE and I will not take credit for them. *** TRANSCRIPT: Pedigrees are used to determine if a trait is dominant, recessive, sex-linked, or autosomal. A lot of these types of questions tend to pop up on the AP exam, too, so they’re important to pay attention to. Here I’ve got a sample pedigree for you. The circles symbolize females and the squares symbolize males. Any shape that’s colored in represents a person that has an attached earlobe. Now, our job is to find out whether the attached earlobe is dominant or recessive, and whether it’s autosomal or sex-linked. By the way, autosomal traits are traits that aren’t located on the sex chromosomes, so they’re any traits that aren’t sex-linked. So, there aren’t any genotypes shown here, just colored and blank shapes. How are we going to solve this? Well, we can see in this section that the parents don’t have an attached earlobe, but one of their children does. Let’s think about it: if the parents were hybrids, we’ll say that they have one dominant earlobe allele and one recessive earlobe allele each. When we solve the Punnett square, we get this. Three of the children have the dominant phenotype like the parents, and one child has the recessive phenotype. Now we know that having an attached earlobe is recessive, because this genotype is the only one with a phenotype other than the parents. So, that phenotype must be this child. And, we know that the child has attached earlobes because his box is colored in. Therefore, attached earlobes are a recessive trait because the child has a recessive genotype. Now let’s try to figure out if this trait is sex-linked or autosomal. In this section of the pedigree, we see that the parents are not affected, but one of their children is. So let’s just ASSUME that this trait IS sex-linked. If that were the case, then the father wouldn’t have an affected X chromosome. So, his genotype would be XY. Now, the mother could either have no affected X chromosomes or one affected X chromosome, since we know it’s a recessive trait and even if she has one affected X chromosome, she won’t express the trait because it’s recessive. Now, let’s take a look at the Punnett squares for this cross. In this Punnett square with the mother having one affected X chromosome, we see that one of the daughters is a carrier, and the other isn’t. In this other Punnett square with the mother having no affected X chromosomes, both possible daughters have no affected X chromosomes either. Well, neither of these match up with the pedigree that we have originally, because in this pedigree, we have one daughter who DOES express the trait, meaning she MUST have two affected X chromosomes since the trait is recessive. Therefore, we know that the trait is not sex-linked, because in these Punnett squares, none of the possible daughters have two affected X chromosomes. And there it is: the trait is autosomal recessive. The key thing to examining pedigrees is to try different combinations like we did with the Punnett squares. Once you can prove if a trait is recessive or not, or sex-linked or not, then you can figure it out from there.
Views: 542 Tangerine Education
How to solve genetics probability problems
 
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This genetics lecture explains How to solve genetics probability problems with simpler and easy tricks and this video also explains when to use addition or multiplication rule to solve probability problems in genetics. So watch this video lecture to learn how to solve genetics problems with probability and risk calculations using addition and multiplication rule. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching the genetics lecture on How to solve genetics probability problems.
Views: 143964 Shomu's Biology
Genetic Recombination and Gene Mapping
 
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In this video Paul Andersen explains how the frequency of recombination between linked genes can be used to determine the relative location of genes on a chromosome. Thomas Hunt Morgan and Alfred Strutevant used the fruit fly to develop a theory of chromosomal inheritance and discover crossing over. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: "File:Drosophila Repleta Lateral.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. http://en.wikipedia.org/wiki/File:Drosophila_repleta_lateral.jpg. "File:Morgan Crossover 1.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. http://en.wikipedia.org/wiki/File:Morgan_crossover_1.jpg. "File:Thomas Hunt Morgan.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. http://en.wikipedia.org/wiki/File:Thomas_Hunt_Morgan.jpg. "FlyBase," n.d. http://flybase.org/reports/FBgn0003975.html. spax89. Illustration of a Tobacco Pipe, 2009. Extracted from Media:Blason de la ville de Saint-Quentin-la-Poterie (30).svg. http://commons.wikimedia.org/wiki/File:Tobacco_pipe.svg.
Views: 660502 Bozeman Science
X Linked Dominant Pedigree
 
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Views: 52504 Biologybyme
Introduction to Heredity
 
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Heredity and Classical Genetics. Dominant and recessive traits. Heterozygous and homozygous genotypes. More free lessons at: http://www.khanacademy.org/video?v=eEUvRrhmcxM
Views: 1197902 Khan Academy
Pedigree Analysis and Probability Problems (Hindi)
 
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In Pedigree analysis we use to denote the inheritance of certain disease with the help of certain symbols. The symbols used in the analysis has been well explained on the lecture. There are certain patterns of various types of inheritance in pedigree. There are four patterns of expected patterns in pedigrees: 1. Autosomal recessive inheritance 2. Autosomal Dominant Inheritance 3. Sex-Linked Dominant inheritance 4. Sex-Linked recessive inheritance Probability based on pedigree analysis were also discussed at the end of the lecture. For English Lecture click on the link below https://youtu.be/-cGJrKfatIQ
Example punnet square for sex-linked recessive trait | High school biology | Khan Academy
 
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Example punnet square for sex-linked recessive trait. View more lessons or practice this subject at https://www.khanacademy.org/science/high-school-biology/hs-classical-genetics/hs-sex-linkage/v/example-punnet-square-for-sex-linked-recessive-trait?utm_source=youtube&utm_medium=desc&utm_campaign=highschoolbiology Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
Views: 22789 Khan Academy
How to calculate inbreeding from a pedigree chart
 
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Though there are computer programs, which will calculate the inbreeding coefficient automatically, based on pedigrees entered into a database, it is still handy to be able to calculate the inbreeding in less complicated pedigrees manually. Here is a short description on how to calculate the inbreeding coefficient from a pedigree by using the path coefficient method.
pedigree analysis made easy!!! (Genetics)
 
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This video is about analysis of pedigrees. In this video you will learn how to find out the genotype and type of pedigree. (X-linked Dominant, Y-linked, X-linked Reccessive, and autosomal reccesive, autosomal dominant).
Views: 29 Sunny's Science
Pedigree Charts
 
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A simple description of how to create a pedigree chart in genetics.
Views: 280105 Jennifer DesRochers
Genetics Pedigree Sex linked Recessive Analysis
 
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Using a pedigree for a family with Hemophilia (Sex-Linked Recessive Disorder). Assign notation and determine the genotypes of each person in this pedigree.
Dominant vs Recessive Traits
 
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Learn how dominant and recessive human traits are represented and interact with each other
Views: 112565 ScinceGonnaGetYou
Pedigree Analysis: Dominant & Recessive Patterns – Genetics | Lecturio
 
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This video “Pedigree Analysis: Dominant & Recessive Patterns ” is part of the Lecturio course “Genetics” ► WATCH the complete course on http://lectur.io/pedigree ► LEARN ABOUT: - Dominant/recessive patterns - Patterns of inheritance - Dominant traits - Recessive traits - Explanation of Pedigree Analysis ► THE PROF: Dr. Georgina Cornwell is an adjunct instructor at several universities in the U.S. and a highly regarded teacher – from microbiology to genetics. After receiving her Ph.D. in 2000, she started working as a lecturer at the University of Colorado. There, she fully committed to integrating online, interactive or live video courses into her classes, and used modern technology to improve the quality of the lecture. Furthermore, she provides her students with additional and new possibilities to study and review the lectures’ content. For that reason we believe that her outstanding qualities make her the perfect fit to present you the subject Pedigree Analysis. ► LECTURIO is your single-point resource for medical school: Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/pedigree ► INSTALL our free Lecturio app iTunes Store: https://app.adjust.com/z21zrf Play Store: https://app.adjust.com/b01fak ► READ TEXTBOOK ARTICLES related to this video: DNA Structure and Replication Replisome, Monohybrid and Dihybrid Crosses http://lectur.io/dnastructurearticle ► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe ► WATCH MORE ON YOUTUBE: http://lectur.io/playlists ► LET’S CONNECT: • Facebook: https://www.facebook.com/lecturio.medical.education.videos • Instagram: https://www.instagram.com/lecturio_medical_videos • Twitter: https://twitter.com/LecturioMed
Example of Solution of the Simple Pedigree Problem
 
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The Punnett square is a diagram that is used to predict an outcome of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype. The Punnett square is a tabular summary of possible combinations of maternal alleles with paternal alleles.These tables can be used to examine the genotypic outcome probabilities of the offspring of a single trait (allele), or when crossing multiple traits from the parents. The Punnett Square is a visual representation of Mendelian inheritance. It is important to understand the terms "heterozygous", "homozygous", "double heterozygote" (or homozygote), "dominant allele" and "recessive allele" when using the Punnet square method. For multiple traits, using the "forked-line method" is typically much easier than the Punnett square. Phenotypes may be predicted with at least better-than-chance accuracy using a Punnett square, but the phenotype that may appear in the presence of a given genotype can in some instances be influenced by many other factors, as when polygenic inheritance and/or epigenetics are at work.
8K - Predicting genotypes and probabilities from pedigree diagrams
 
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8K_full This is Lecture 8K of the free online course Useful Genetics Part 2. All of the lectures are on YouTube in the Useful Genetics library. Register for the full course here: https://www.edx.org/course/useful-genetics-part-2-genes-genetic-ubcx-usegen-2x
Views: 1773 Useful Genetics
100% Guaranteed Trick to solve Pedigree Chart
 
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1. 100% Guaranteed Trick to solve Inheritance pattern in exams. 2. Least time taking trick available on Internet/ YouTube. 3. Easiest Trick available. 4. Solving Pedigree chart has now become a simple game with this trick. Like, Share, Subscribe!!! Youtube: http://www.youtube.com/c/AnatomyClassesbyDrSushant Twitter: https://twitter.com/anatomy_classes Facebook: https://www.facebook.com/AnatomyClasssesByDrSushant Instagram: https://www.instagram.com/anatomyclassesbydrsushant About : Anatomy Classes By Dr. Sushant is a YouTube Channel, where you will find anatomy videos in english :)
Pedigree chart analysis
 
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Analyzing a pedigree chart
Views: 1333 Janine Bertolotti
Genetic analysis of pedigrees
 
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This video will show you how to solve genetic problems involving family pedigrees. it explains how pedigrees involving medical conditions are represented. It illustrates hypothesis testing and genotype assignment.
Views: 718 Genetics