Introduction to Heredity

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  • เผยแพร่เมื่อ 21 ส.ค. 2024
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    Heredity and Classical Genetics. Dominant and recessive traits. Heterozygous and homozygous genotypes.
    More free lessons at: www.khanacademy...

ความคิดเห็น • 510

  • @jeramiahcox6976
    @jeramiahcox6976 3 ปีที่แล้ว +345

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

    • @ceciderose5607
      @ceciderose5607 2 ปีที่แล้ว +13

      I felt that

    • @action16x2
      @action16x2 2 ปีที่แล้ว +1

      Ya

    • @daveeena6226
      @daveeena6226 ปีที่แล้ว

      @@ceciderose5607 the other hand ✋✋

    • @saber8156
      @saber8156 11 หลายเดือนก่อน +6

      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.

  • @shubhamraorane3383
    @shubhamraorane3383 2 ปีที่แล้ว +29

    11:45 "Lets have a look at what's happening when my mom and dad reproduced.". Utter dedication to teaching. Nothing is off limits when it comes to teaching!

    • @user-zh5mp5zt4c
      @user-zh5mp5zt4c ปีที่แล้ว +1

      Something would definetely happened 👍

  • @TheKidega
    @TheKidega 12 ปีที่แล้ว +293

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

  • @amazinggirl12
    @amazinggirl12 14 ปีที่แล้ว +62

    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

  • @corey5454
    @corey5454 9 ปีที่แล้ว +19

    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
      @corey5454 8 ปีที่แล้ว +1

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

    • @YVNGNAMEK
      @YVNGNAMEK 8 ปีที่แล้ว

      +Gizelle Blanc U a freshman?

    • @corey5454
      @corey5454 8 ปีที่แล้ว +1

      YVNG NAMEK Sophomore

    • @FrostySpade
      @FrostySpade 7 ปีที่แล้ว

      sammmeeeeeeee

    • @michellesantiago7999
      @michellesantiago7999 6 ปีที่แล้ว

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

  • @xtra11farfoory
    @xtra11farfoory 12 ปีที่แล้ว +5

    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
      @bollywoodonly1955 2 ปีที่แล้ว +3

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

  • @michellerosas3987
    @michellerosas3987 7 ปีที่แล้ว +66

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

    • @vanshrajgupta8334
      @vanshrajgupta8334 2 ปีที่แล้ว +1

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

    • @ikseason24
      @ikseason24 2 ปีที่แล้ว

      bro are you a biologist now?

    • @bollywoodonly1955
      @bollywoodonly1955 2 ปีที่แล้ว

      @@ikseason24 yeah! I guess so

  • @empresslioness9964
    @empresslioness9964 7 ปีที่แล้ว +15

    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
    @Tomthesk8r 4 ปีที่แล้ว +211

    Who else here for quarantine online school

  • @yd1865
    @yd1865 3 ปีที่แล้ว +11

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

  • @carriecalorio3431
    @carriecalorio3431 3 ปีที่แล้ว +7

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

  • @MamaBear112311
    @MamaBear112311 3 ปีที่แล้ว +7

    Excellent video! I have been struggling to understand these lessons, and found this on TH-cam 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 TH-cam. Thank you!

  • @toxicvenom2883
    @toxicvenom2883 4 ปีที่แล้ว +161

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

    • @benjaminglaubke7150
      @benjaminglaubke7150 4 ปีที่แล้ว +9

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

    • @alexalou4616
      @alexalou4616 4 ปีที่แล้ว +1

      Google classroom sent me here...

    • @YChwibanwr
      @YChwibanwr 4 ปีที่แล้ว +2

      I actually came to understand this.

    • @madiisonrivera
      @madiisonrivera 3 ปีที่แล้ว

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

    • @nyakelley6360
      @nyakelley6360 3 ปีที่แล้ว

      What a wonderfully beautiful poem

  • @aaronalbert6985
    @aaronalbert6985 5 ปีที่แล้ว +40

    Here two hours before my exam. lol

    • @malekbaghdadi5862
      @malekbaghdadi5862 4 ปีที่แล้ว +2

      12 hours before my exam

    • @cattoO_O
      @cattoO_O 3 ปีที่แล้ว +1

      How was the exam lol

    • @lizzy5828
      @lizzy5828 3 ปีที่แล้ว

      months before my exam

  • @mahdavimath22
    @mahdavimath22 3 ปีที่แล้ว +7

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

  • @_G6_
    @_G6_ 8 ปีที่แล้ว +120

    Test tommorow 😅 thx

  • @sagellivokin
    @sagellivokin 10 ปีที่แล้ว +9

    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
      @epicchan1668 10 ปีที่แล้ว

      His name is Sal.

    • @sagellivokin
      @sagellivokin 10 ปีที่แล้ว +1

      epicchan1668 haha I was writing to the channel itself.

    • @shaneoshea2095
      @shaneoshea2095 10 ปีที่แล้ว

      epicchan1668 Salman Khan...

    • @all3tar
      @all3tar 3 ปีที่แล้ว

      @@shaneoshea2095 lmfao

  • @Blueberrysky
    @Blueberrysky 11 ปีที่แล้ว +1

    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!

  • @davis050594
    @davis050594 12 ปีที่แล้ว +2

    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
      @peachmaster5727 3 ปีที่แล้ว

      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.

  • @VedyaLovely95
    @VedyaLovely95 12 ปีที่แล้ว

    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!

  • @yasmeenkhan8803
    @yasmeenkhan8803 8 ปีที่แล้ว +4

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

  • @mitzeysweetsong3342
    @mitzeysweetsong3342 6 ปีที่แล้ว +6

    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!

  • @darksavior1187
    @darksavior1187 7 ปีที่แล้ว +11

    Khan Academy is the best! Thank you!

  • @71Tman
    @71Tman 12 ปีที่แล้ว

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

  • @WhichDoctor1
    @WhichDoctor1 12 ปีที่แล้ว +2

    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.

  • @janis8551
    @janis8551 10 ปีที่แล้ว +32

    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

  • @TalesGrimm
    @TalesGrimm 8 ปีที่แล้ว +6

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

  • @tumblindice66
    @tumblindice66 14 ปีที่แล้ว +2

    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
      @madiisonrivera 3 ปีที่แล้ว +1

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

  • @tangerinepaint3643
    @tangerinepaint3643 6 ปีที่แล้ว

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

  • @eyyubovvv
    @eyyubovvv 4 ปีที่แล้ว +3

    Ayyy watched this during my exam! Very helpful.

    • @all3tar
      @all3tar 3 ปีที่แล้ว

      du- during?? thats cheating

  • @StriveForExcellence2
    @StriveForExcellence2 11 ปีที่แล้ว +2

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

  • @1futuredre413
    @1futuredre413 8 ปีที่แล้ว +3

    Thanks to this video i finally understand Punnett Squares

  • @timetoflyyy
    @timetoflyyy 13 ปีที่แล้ว +1

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

  • @imjustsayin34
    @imjustsayin34 10 ปีที่แล้ว +1

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

  • @xdarkdreamerx
    @xdarkdreamerx 12 ปีที่แล้ว +3

    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.

  • @princemharialmejia6517
    @princemharialmejia6517 7 ปีที่แล้ว +20

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

  • @keyalrashmi07
    @keyalrashmi07 7 ปีที่แล้ว +2

    You guys are doing a great job Khan academy !!

  • @athirahmaridan
    @athirahmaridan 13 ปีที่แล้ว +1

    seriously it makes me want 2 learn biology more n more

  •  3 ปีที่แล้ว

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

  • @Nalamartuo
    @Nalamartuo 10 ปีที่แล้ว +126

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

    • @yukio9419
      @yukio9419 9 ปีที่แล้ว +3

      lol...

    • @samsheikh7757
      @samsheikh7757 9 ปีที่แล้ว +1

      Omfgggg.

    • @lagospickin
      @lagospickin 5 ปีที่แล้ว +20

      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
      @n10tkey1 4 ปีที่แล้ว +1

      @@lagospickin Well said!

    • @DivineSeaDragon
      @DivineSeaDragon 4 ปีที่แล้ว +2

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

  • @ArmlessBandit
    @ArmlessBandit 13 ปีที่แล้ว +1

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

  • @ansaf911
    @ansaf911 14 ปีที่แล้ว

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

  • @ericamay4489
    @ericamay4489 5 ปีที่แล้ว

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

  • @gosek006
    @gosek006 14 ปีที่แล้ว

    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.

  • @HafizahHoshni
    @HafizahHoshni 11 ปีที่แล้ว +2

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

  • @Gator115
    @Gator115 13 ปีที่แล้ว +3

    Ohhh my god this guy is amazing.

  • @serendipty70
    @serendipty70 7 ปีที่แล้ว +1

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

  • @bleu4906
    @bleu4906 4 ปีที่แล้ว

    Thank him by donating

  • @estiiim
    @estiiim 3 ปีที่แล้ว +1

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

  • @shazaduh
    @shazaduh 14 ปีที่แล้ว +2

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

  • @CristaFabulous
    @CristaFabulous 11 ปีที่แล้ว

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

  • @71Tman
    @71Tman 12 ปีที่แล้ว

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

  • @interestingmatters3-d137
    @interestingmatters3-d137 7 ปีที่แล้ว +2

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

  • @shrabastiadhya
    @shrabastiadhya 3 ปีที่แล้ว

    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!

  • @619daphne
    @619daphne 13 ปีที่แล้ว +1

    wish i knew about kanacademy from long time!

  • @27capricia
    @27capricia 6 ปีที่แล้ว +1

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

  • @huntermackie1948
    @huntermackie1948 7 ปีที่แล้ว

    Really Helpful For grade 9 Science Pray for Canada

  • @sruthi195
    @sruthi195 7 ปีที่แล้ว +10

    Is the dominant allele always represented by the capital letter?

    • @gerbiegaming7476
      @gerbiegaming7476 7 ปีที่แล้ว +7

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

    • @2MC
      @2MC 7 ปีที่แล้ว +1

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

    • @a.m.coachinginstitute4777
      @a.m.coachinginstitute4777 5 ปีที่แล้ว

      Yes

  • @valfredodematteis-poet
    @valfredodematteis-poet 4 ปีที่แล้ว +1

    you are an excellent teacher, thank you very much

  • @kotofu
    @kotofu 13 ปีที่แล้ว

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

  • @ClientideStudios
    @ClientideStudios 10 ปีที่แล้ว +6

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

  • @supSCUB4ST3V3
    @supSCUB4ST3V3 10 ปีที่แล้ว +3

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

  • @PolkaDotSunshine9
    @PolkaDotSunshine9 11 ปีที่แล้ว +1

    This helped me so much. thank you sir

  • @dscience8
    @dscience8 14 ปีที่แล้ว

    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!

  • @nirajrm
    @nirajrm 13 ปีที่แล้ว

    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
      @bollywoodonly1955 2 ปีที่แล้ว

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

  • @josephajrab2839
    @josephajrab2839 7 ปีที่แล้ว +146

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

    • @MrUmachand
      @MrUmachand 5 ปีที่แล้ว +7

      Hot brown eyed girl

    • @brettbrzycki6845
      @brettbrzycki6845 5 ปีที่แล้ว +4

      XD just noticed!!!

    • @neomannn
      @neomannn 4 ปีที่แล้ว

      Joseph Ajrab oop- yep i’m moving to mexico

    • @Shutupb1tch420
      @Shutupb1tch420 4 ปีที่แล้ว

      He has standards, doesn't everybody?

    • @its_izhaan
      @its_izhaan 3 ปีที่แล้ว

      @Kristine Sherman lmao

  • @fatemamultan
    @fatemamultan 5 ปีที่แล้ว +3

    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 TH-cam
    Like if u can relate

  • @trumpet44girl
    @trumpet44girl 12 ปีที่แล้ว

    My Geometry teacher knows this guy!

  • @crozzy27
    @crozzy27 15 ปีที่แล้ว +2

    great stuff as usual!

  • @joshuahurtado5292
    @joshuahurtado5292 4 ปีที่แล้ว +4

    Test today 😂 last moment studying

  • @mayathepanda3926
    @mayathepanda3926 3 ปีที่แล้ว

    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

  • @gambinoancient9444
    @gambinoancient9444 9 ปีที่แล้ว +1

    THANK YOU

  • @LalitKumar-yq1th
    @LalitKumar-yq1th 4 ปีที่แล้ว +1

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

  • @florecita771000
    @florecita771000 13 ปีที่แล้ว

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

  • @fauxdesire1
    @fauxdesire1 12 ปีที่แล้ว

    passing my exam tomorrow because of you.

  • @yanayanayana45
    @yanayanayana45 11 ปีที่แล้ว

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

  • @abdelrahmangamalmahdy
    @abdelrahmangamalmahdy 9 ปีที่แล้ว +2

    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
      @chaoszombie9995 8 ปีที่แล้ว

      +Abdulrahman Mahdaly he knows stuff yew

  • @zoeybabyblue
    @zoeybabyblue 12 ปีที่แล้ว

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

  • @kentong9514
    @kentong9514 3 ปีที่แล้ว

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

  • @user-vv1ry8lv1f
    @user-vv1ry8lv1f 11 หลายเดือนก่อน

    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?

  • @haitianj2010
    @haitianj2010 13 ปีที่แล้ว

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

  • @LeandraRose1776
    @LeandraRose1776 12 ปีที่แล้ว

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

  • @BigEdJon
    @BigEdJon 12 ปีที่แล้ว

    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

  • @maekosin
    @maekosin 9 ปีที่แล้ว

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

  • @paul.marley
    @paul.marley 13 ปีที่แล้ว

    thanks from germany!
    better then our lessons...

  • @crazeepuffs2515
    @crazeepuffs2515 10 ปีที่แล้ว +1

    Its supposed to be Gregor Mendel :D

  • @peterschafer5807
    @peterschafer5807 3 ปีที่แล้ว

    [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❗❗❗✨

  • @ANGRYBEAST592
    @ANGRYBEAST592 11 ปีที่แล้ว

    Thanks Khan really helped me!

  • @aislinnfolan
    @aislinnfolan 13 ปีที่แล้ว +2

    i finally get it! i'm so happy, thank you :]

    • @greenthunder1944
      @greenthunder1944 4 ปีที่แล้ว

      Zee Sky wow almost 10 years ago

    • @amigo7672
      @amigo7672 2 ปีที่แล้ว

      11 years. wow

  • @kamtha7
    @kamtha7 13 ปีที่แล้ว

    thank you for all your informative videos.

  • @rileyXO22400
    @rileyXO22400 11 ปีที่แล้ว

    Saved me my teacher was absent and I have a test tomorrow

  • @hiraashraf2419
    @hiraashraf2419 9 ปีที่แล้ว

    excellent explanation doc

  • @basantaAdhikari-hd9hw
    @basantaAdhikari-hd9hw 2 หลายเดือนก่อน

    2024 is the best minute for a watch 1:45

  • @philippeneron
    @philippeneron 9 ปีที่แล้ว +2

    Well done.

  • @kamilantwin1
    @kamilantwin1 6 ปีที่แล้ว

    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??

  • @youngamerz
    @youngamerz 2 ปีที่แล้ว

    Imagine having him as your teacher in scuul

  • @ASMEETKAUR-yf1dv
    @ASMEETKAUR-yf1dv 7 หลายเดือนก่อน +7

    LEGENDS watching in 2024!!!!??😵

    • @bkk28200
      @bkk28200 4 หลายเดือนก่อน

      yeah 😂

  • @learningsciencechannel1894
    @learningsciencechannel1894 3 ปีที่แล้ว

    Very informative❤️

  • @TalesGrimm
    @TalesGrimm 8 ปีที่แล้ว

    At 9:05 you said that brown eyes are recessive, other than that, this it great!

  • @safiullah11
    @safiullah11 13 ปีที่แล้ว

    thnxx a lot... ur explanation is so good !!