Introduction to Heredity

[@jeramiahcox6976]

When you open the textbook, find a topic, type it into youtube, and pray that Khan has explained it for you.

[@ceciderose5607]

I felt that

[@action16x2]

Ya

[@daveeena6226]

@@ceciderose5607 the other hand ✋✋

[@saber1885]

We should be grateful to be living in an age where studying is so easy and accessible and effortless. But at the same time there are so many distractions now.

[@TheKidega]

This is day one of "studying" ...my test is tomrrow.

[@muniirahirsi8116]

Hey 8 years later

[@animeshgiri6145]

lmao hey

[@animeshgiri6145]

are you alive?

[@maryamalmeteab9076]

Animesh Giri 😂😂😂😂

[@pluto1012]

Now there is no "studying" just Google (¬‿¬) Quarantine School 101

[@xtra11farfoory]

this video saved my life , .... i really understood all of it before my exam by 5 days ... and it didn't take 5 lessons a week .. thanks a lot Khan ..... You Are The Master

[@bollywoodonly1955]

Wow! ten years ago. Ten years ago i was in my diapers roaming around 😄.

[@amazinggirl12]

Omg THANK YOU SOOO MUCHH!! MY BIOLOGY TEACHER IS AN ASS!!! He basically tells us to take notes on sections from the book and expect us to memorize everything in one day and then gives us a QUIZ of 50 questions !! SOOOO THANKKK YOUUUU SOO MUCHH! I FEEL MORE COMFORTABLE FOR TOMORROWS QUIZ! :D

[@muniirahirsi8116]

Hey 9 years later

[@devisankhla4788]

Muniira Hirsi hey 1 month later

[@ewz812]

Hey 1 week later

[@vloggerperson7398]

MS hey 8 hours later

[@greenthunder1944]

Vlogger person hey a day later

[@empresslioness9964]

this was so simple to understand . thank you for the examples. I learned this about 2 years ago but I did not grasp the information as easy as I just did from watching this video. thank you again!!

[@Tomthesk8r]

Who else here for quarantine online school

[@ronanbishop7202]

Yeah

[@urlv3lexi05]

Indeed

[@Shutupb1tch420]

me

[@argh5]

Yes Sir

[@jxysloser7233]

i am im studying

[@MamaBear112311]

Excellent video! I have been struggling to understand these lessons, and found this on KZbin to study for my midterm I have to take today. I am so appreciative of its plain language, and slow visual breakdown in comparison to some other videos on KZbin. Thank you!

[@corey5454]

Taking the MCAT in 2017, I'm not even nervous anymore after watching a crap load of you guys videos. Thanks so much for this.

[@corey5454]

Taking it in Spring 2018, change of plans lol, then gap year in 2019.

[@YVNGNAMEK]

+Gizelle Blanc U a freshman?

[@corey5454]

YVNG NAMEK Sophomore

[@FrostySpade]

sammmeeeeeeee

[@michellesantiago7999]

I'm taking in this September! Hope you do great

[@carriecalorio3431]

This man's voice and handwriting has got me focused!

[@toxicvenom2883]

Roses are Red Violets are Blue My teacher sent me here Yours did too

[@benjaminglaubke7150]

Instead of doing the work, did you just think of that poem?

[@alexalou4616]

Google classroom sent me here...

[@YChwibanwr]

I actually came to understand this.

[@madiisonrivera]

actually my GED study guide sent me here but close enough lol

[@nyakelley6360]

What a wonderfully beautiful poem

[@michellerosas3987]

OMG thanks you teach better than my teacher, you should never stop making educational videos 😆

[@vanshrajgupta8334]

exactly,also in my case.teacher better then mine also.

[@ikseason24]

bro are you a biologist now?

[@bollywoodonly1955]

@@ikseason24 yeah! I guess so

[@VedyaLovely95]

from Malaysia..my school teacher sucks! she went off for her maternity holiday and didnt bother to teach us this topic properly..thanks again!its awesome!

[@tumblindice66]

Very nice presentation. Comprehensive, simplified sketching with a soothing voice makes this a great study tool. Thanks I am studying for the Kaplan nursing school entrance test

[@madiisonrivera]

wow, you commented this 10 years ago!! how did it go? did you make it into nursing school? wishing you well!!

[@_G6_]

Test tommorow 😅 thx

[@bhavikagupta175]

Wood Wanderer Same here😉😉😉😉

[@mgallelli42]

What'd you get on the test

[@swanqilcooledition6666]

wHat DId YoU GEt oN tHe tEsT??!

[@DivineSeaDragon]

mgallelli42 they never respond

[@DivineSeaDragon]

Wood Wanderer tell us the truth

[@mahdavimath22]

click 'settings', click 'play speed', click 2. The pain goes away quicker.

[@sagellivokin]

Khan, I love your videos. I've been watching your Biology playlist non-stop and I'm getting really excited about Biology. Your video on meiosis got me hooked. Keep up the good work!

[@epicchan1668]

His name is Sal.

[@sagellivokin]

epicchan1668 haha I was writing to the channel itself.

[@shaneoshea2095]

epicchan1668 Salman Khan...

[@all3tar]

@@shaneoshea2095 lmfao

[@davis050594]

These videos have literally saved me. I wish I knew about them before finals. I learned next to nothing this past year and am having to learn it all for the final.

[@peachmaster5727]

so uh, it's been 8 years, you got a wife and children? you probably don't even have this google account anymore but just in case you do.

[@ASMEETKAUR-yf1dv]

LEGENDS watching in 2024!!!!??😵

[@quantum_highschool]

yeah 😂

[@Blueberrysky]

I just wonder why don't those years I've been studying they have the internet. Can't believe all the excellent subjects are gather here!

[@yasmeenkhan8803]

This video is so great. Cleared so many of my doubts.

[@aaronalbert6985]

Here two hours before my exam. lol

[@malekbaghdadi5862]

12 hours before my exam

[@cattoO_O]

How was the exam lol

[@lizzy5828]

months before my exam

[@darksavior1187]

Khan Academy is the best! Thank you!

[@71Tman]

this guy is able to reassure you of everything you have learnt in class, and then teach it better

[@StriveForExcellence2]

This is a really neat video explaining Genetics and Heredity, especially for VCE students doing Biology. Thanks.

[@imjustsayin34]

having a marathon of your bio videos before my sat 2 in a month thanks!!

[@tangerinepaint3643]

I had to do this for my science "Choose your own 'adventure' (Assignment)" project, but, I developed a liking to your videos

Hey, this is the same teacher for Economics!! Brilliant human being!!

[@yd1865]

Nobody: Teacher Guy: "So let's think a little bit about what's actually happening when my Mom and Dad reproduced" 11:43

[@gosek006]

thank you..you have jus made genetics become clearer and clearer to me.. than you again.........pls keep doin what you are doin pls, its worth it.

[@eyyubovvv]

Ayyy watched this during my exam! Very helpful.

[@all3tar]

du- during?? thats cheating

[@janis8551]

I love your drawings and some of the explanation's, but I feel you can shorter videos, by not repeating the same thing or going off on tangents

[@keyalrashmi07]

You guys are doing a great job Khan academy !!

[@ansaf911]

thanks for the help i just pass the genetics exam with very good mark ,,,u r simplifying genetics so much in this way .thankssssssssssssss

[@xdarkdreamerx]

Awesome video! Thanks for posting. It really helped me understand the basics. I really learned a lot more through your video than in the month of work through my physical anthropology class.

[@mitzeysweetsong3342]

Been playing the RTS and Genetics Sim game Beetle Uprising on Steam - had to come here and refresh my genetics understanding so I could figure out the breeding - thanks for the gaming help!

[@CristaFabulous]

Wish this went into detail about codominance, incomplete dominance, etc or that there was another video for more depth. But as always, awesome job!

[@WhichDoctor1]

That dominance thing is definitely the case with chickens. We had two black chickens a few years ago, they both had one chick from a very colorful golden brown cockerel and they both produced completely black chicks.

[@timetoflyyy]

I've learnt more in 17 minutes, than in the 2 months of a genetics course in school.

[@AliAbbas-ob2il]

Me too

[@ericamay4489]

I watched several videos but none explained heredity so well. Thanks!

[@TalesGrimm]

At 9:37 the genotype had some trouble. Dominant always comes before recessive. Great work though!

[@1futuredre413]

Thanks to this video i finally understand Punnett Squares

[@BioAnswersStudent]

I wanted to ask a question to clarify some simple concepts. We always hear that we have two copies of every gene (one from father and another from mother). When we say that, do we mean the 5-3 strand and 3-5 strand double stranded DNA? Or do we mean that there are actually two copies of the gene, each having its own 5-3 strand and 3-5 strand?

[@HafizahHoshni]

Waaa, you makes my Genetic studies easier man !! Thanksss a lot. God bless you !! :D

[@ArmlessBandit]

ok I have to say this.. you have the most epic voice ever!

[@interestingmatters3-d137]

awesome, helpful in higher education easily understable, it is permanently stored in mind

[@valfredodematteis-poet]

you are an excellent teacher, thank you very much

[@huntermackie1948]

Really Helpful For grade 9 Science Pray for Canada

[@athirahmaridan]

seriously it makes me want 2 learn biology more n more

[@supSCUB4ST3V3]

This video and another has helped so much prepare me for a quiz tomorrow! thank you!

[@619daphne]

wish i knew about kanacademy from long time!

[@27capricia]

Thank you so much. I have always been confused about this until now. I now get it.

[@princemharialmejia6517]

thx we have a test tommorow we love you for teaching us

[@acookingvlogs926]

Not we u 😎

[@bleu4906]

Thank him by donating

[@Nalamartuo]

a priest that would mess around with plants......where it all started going wrong.

[@yukio9419]

lol...

[@samsheikh7757]

Omfgggg.

[@oneofthe13percent]

If he hadn't, we'd still be blaming some things on superstitious influence and magic and witchcraft, that could easily be understood as inherited trait.

[@n10tkey1]

@@oneofthe13percent Well said!

[@DivineSeaDragon]

g houston someone else would have discovered it by now if he hadn’t

[@BigEdJon]

great videos on biology generally. One thing however maybe you could put inheritance into the tags of this as that is how i searched for a video on this topic and only came across this one because it was in related videos. Thanks again

[@LalitKumar-yq1th]

how to find whether the feature like brown eye color is dominant or the blue eye color is recessive

[@kotofu]

these drawings are much better than before. Upgraded to a pad?

[@mayathepanda3926]

TYSMM YOU HELPED ME SO MUCH I WAS SO NERVUS ABOUT THE EXAM BUT I AM OK RN BECAUSE I WATCHED YOUR AMAZING VIDS tommorow is my exam ... N

[@serendipty70]

Here in 2017 with a test tomorrow, thanks!!!

[@Gator115]

Ohhh my god this guy is amazing.

[@PolkaDotSunshine9]

This helped me so much. thank you sir

[@yanayanayana45]

I hope pearson edu is paying you, coz this was on my psychology online course material

[@livingsimply]

Sal.. You are my hero! That was so easy to understand . I feel more ready for my exams now!

[@haitianj2010]

awesome explanation......not boring at all

[@71Tman]

Khan academy, this guy and Vsauce are like the basis for all teenage knowledge in science

[@shrabastiadhya]

Wow. The same thing has occurred to me. My dad has green eyes and my mom has brown, but since brown is dominant over green, I got brown eyes! Wow. Doubt cleared! Thanks, Khan academy!

[@nirajrm]

Just for the information that the eye color is determined by multiple genes. Khan had used this as an example of trait governed by single gene to make it simple for understanding.

[@bollywoodonly1955]

Thanks Niraj bhaiya. I wonder what you do now ? I mean it's been 10 years

[@dscience8]

Hey Sal. I know one person ho has different eye colors. But, thanks for this video anyway. Big Science Test in the 7th grade. Tomorrow. Last Major grade of the year and of the 4th quarter. Next year, 8th grade!

[@florecita771000]

I dont understand my teacher now i understand!!!! thx u!!

[@maekosin]

shorthand = a method of rapid writing by means of abbreviations and symbols, grid = grade, framework

[@josephajrab2839]

0:27 he said Then if he were marry a brown HOT eyed girl ;)

[@MrUmachand]

Hot brown eyed girl

[@brettbrzycki6845]

XD just noticed!!!

[@neomannn]

Joseph Ajrab oop- yep i’m moving to mexico

[@Shutupb1tch420]

He has standards, doesn't everybody?

[@its_izhaan]

@Kristine Sherman lmao

[@kentong9514]

Khan Academy always has the best explanation. Straightforward and easy to understand.

[@mtlolz21]

Could you make a video about behavorial rhythms, circannaul rhythms, and circadian rhythms?

[@hasnat805]

hello, salman bhai ,u can make lecture for edexcel alevel biology.the lecture on dna was outstnding

[@hiraashraf2419]

excellent explanation doc

[@thisisajokepodcasts]

yeah I like these episodes, I'm on the final season

[@zoeybabyblue]

the more u teach me the more bio is unlocking lolzz tanks a million...:-)

[@crozzy27]

great stuff as usual!

[@estiiim]

I'm 4 assignments behind and I'm watching this by my own free will 😅😅

[@sruthi195]

Is the dominant allele always represented by the capital letter?

[@gerbiegaming7476]

jiminie's kookie yes and recessive allele is represented by a lowercase letter :)

[@2MC]

In dominant/recessive inheritance, that should always be the case. However, there are other types of inheritance that follow different rules.

[@a.m.coachinginstitute4777]

Yes

[@paul.marley]

thanks from germany! better then our lessons...

[@kamilantwin1]

Let's say the father has blue eyes (both his parents have blue eyes too), and the mother has brown eyes (both her parents have brown eyes too). How does the probability work out for the child to get blue eyes?? Who of the father's and mother's genes become the dominant and the recessive?? Like how do you figure who is dominant and recessive??

[@fauxdesire1]

passing my exam tomorrow because of you.

[@tantantan3]

What if there's a b for brown and b for blue = bb? there's no dominance and what will the eye color be?

[@kamtha7]

thank you for all your informative videos.

[@ishansreport8264]

Could you tell about interference and coincidence in genetics??

[@peterschafer5807]

[BEGINNING OF PSA] -------------------------------------- Thank you, Sal Khan. VERY COOL 👌👌👌✨🧚💨 Sincerely, A college student who's slowly dying of frustration in his freakiN' Anthropology class! PS. This is totally not a cry for help hhahahahahHHAAHHAHAHAH -------------------------------------- [CONCLUSION OF PSA] This PSA has been made possible by contributions from viewers like you. ✨❗❗❗thANK yOU❗❗❗✨

[@KartikayKaul]

Can you tell me the difference between traits and alleles. In our biology classes, we don't use the word alleles we use the word traits. For example, blue eye trait.

[@Undeaddude43]

The Alleles make up the trait, for example for the "blue eye" trait contains the alleles Bb if it were heterozygous, or containing two different alleles. The two alleles are B and b which make up the blue eye trait

[@KartikayKaul]

Okay! Thanks!

[@chinmia]

Alleles are variations of a trait. Eye color is a trait, but each allele represents a variation of that trait. Different variations, or alleles, for eye color are brown, green, blue, hazel, and so on. Each person has two alleles for each trait - one from mom and one from dad. That's what the B and b represent...one allele from each parent. Now, some alleles are "stronger" than others - the dominant ones. Dominant is represented by 'B' and recessive is represented by the lowercase 'b'. All dominant means is that all it takes is one allele to see that trait. So, if brown eyes is B and green is b, all you need is one B from either parent to have brown eyes. If you get two recessive alleles (bb), you end up with green eyes. I know that's a lot of info. I work in genetics, so I try not to sound too confusing. If you have anymore questions or something's unclear, feel free to ask.

[@abdelrahmangamalmahdy]

YOU ARE AWESOME .. how did you know all these information :D you're teaching math physics biology and even economy !! are you even human ?!

[@chaoszombie9995]

+Abdulrahman Mahdaly he knows stuff yew

[@diannewhitmire1232]

My only question now is what makes an allele either dominant or recessive????

[@patrishameow]

Thank you! I have a sub for 3 months, and she doesn’t explain it properly like you do.

[@ANGRYBEAST592]

Thanks Khan really helped me!

[@herur47]

omg Sal, you are amazing :) but 'brown eyes' doesn't have an apostrophe in 'eyes'......

[@shazaduh]

I am an electrical engineer and I am watching bio videos..

[@fatemamultan]

When u have exam next day and u are not in a mood of studying but if u will not study so u will fail and u learn from KZbin Like if u can relate

[@mikay5919]

how is the basic principles of genetics can be applied to human hereditary?

[@LeandraRose1776]

I love the little brown eyed baby! it's so cute! ;)

[@trumpet44girl]

My Geometry teacher knows this guy!

[@zenochburt3945]

what about hazel eyes? I have hazel eyes, how can that happened? Would it come form my grandparents because my dad and mom both have brown eyes same with my sisters. Dose it mean I have differ genes?

[@mildredwashington9072]

Hi. Could you tell me if this phenotype CcDee is the same as CcDDee and CcDdee? Does writting only one letter D means that the second letter is also a D (and not recessive d)? It's very important to me, I hope you will answer!