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An Introduction to Mendelian Genetics | Biomolecules | MCAT | Khan Academy

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An introduction to Mendelian Genetics and inheritance. By Ross Firestone. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/biomolecules/mendelian-genetics/v/co-dominance-and-incomplete-dominance?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/biomolecules/genetic-mutations/v/the-effects-of-mutations?utm_source=YT&utm_medium=Desc&utm_campaign=mcat MCAT on Khan Academy: Go ahead and practice some passage-based questions! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s MCAT channel: https://www.youtube.com/channel/UCDkK5wqSuwDlJ3_nl3rgdiQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
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Text Comments (29)
Shyann Foster (2 months ago)
idk if its just me, but i'm trying to watch this and can't pay attention bc I keep thinking this guy sounds exactly like the main guy in the Netflix series "Love"
ZULU ZERO (4 months ago)
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MultiCorbinsmith (5 months ago)
THIS IS SO FUCKING BORING GODDAMN I FELL ASLEEP 23 TIMES FUCK
MultiCorbinsmith (5 months ago)
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TheDarkAngel (6 months ago)
i hate this video
Amandeep Singh (7 months ago)
DUDE YOUR A LIFE SAVER THX FOR THIS VIDEO!!!!!!!!
autark bond (8 months ago)
Short, punchy and very clear..great thanks Khan Academy.
Natali654 (9 months ago)
A really great video! thank you so much!
Mango Afel (1 year ago)
Amazing Video. Thanks
Kenisha Jackson (1 year ago)
thanks khans academy
Kenisha Jackson (1 year ago)
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RDX of WEEKENDS (1 year ago)
how can u find which one is dominant?
Chinmay Vaishampayan (1 year ago)
O is recessive A is dominant then what is B?
sophia matthews (7 months ago)
It is codominant, so your blood type would be AB
CelebrityBars (1 year ago)
Fuck chiclana
CelebrityBars (1 year ago)
This shit is gay
Lĩnh finewithdis? (1 year ago)
wait, how 46 chromosomes contain DNA that make each CELL unique? I thought each person.
how to know that which one is dominant??? reply..
Kamal Shukla (2 months ago)
Ujjval AKA THE *B.A.A.P* Exactly 😕
Allthings Interesting (1 year ago)
Thank you for uploading this!
x x (1 year ago)
clutch life
Mary (2 years ago)
Thank you for make it so clear
asem hawari (2 years ago)
Correct me if I'm wrong here but wouldn't the genotype be hetero/homo and the phenotype be AA/AO/O ?
Author J.C. McKenzie (2 years ago)
The genotype is the type of genes (alleles) present (AA/AO/OO etc). The Phenotype is the physical trait that's actually expressed (Type O blood, Type A blood). The terms heterozygous and homozygous refer to the genotype. For example, if you have the genotype "AA," you're homozygous for the A allele, and your phenotype is "Type A" blood. If you have the genotype "AB," you're heterozygous (having one A allele and one B allele), and your phenotype is "Type AB" blood. Hope that helps.
Yino Xie (2 years ago)
such clear and easy-to-understand explanation. helped a lot
Sc4rletAss4ssin (3 years ago)
This was helpful thank you
Abol3z Rahmani (3 years ago)
Thanks a loooooooooot :) 
Krishna Borjal (3 years ago)
Short, detailed, straight to the point. Great resource for a quick review before class. Thank you! :)
MiftyFlight (3 years ago)
Blood type is multiple allele, so it's not Mendelian genetics..?!

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