Introduction to Heredity

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  • čas přidán 24. 08. 2024
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    Heredity and Classical Genetics. Dominant and recessive traits. Heterozygous and homozygous genotypes.
    More free lessons at: www.khanacademy...

Komentáře • 510

  • @jeramiahcox6976
    @jeramiahcox6976 Před 3 lety +346

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

    • @ceciderose5607
      @ceciderose5607 Před 2 lety +13

      I felt that

    • @action16x2
      @action16x2 Před 2 lety +1

      Ya

    • @daveeena6226
      @daveeena6226 Před rokem

      @@ceciderose5607 the other hand ✋✋

    • @saber8156
      @saber8156 Před rokem +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.

  • @TheKidega
    @TheKidega Před 12 lety +294

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

  • @shubhamraorane3383
    @shubhamraorane3383 Před 2 lety +30

    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!

  • @Tomthesk8r
    @Tomthesk8r Před 4 lety +212

    Who else here for quarantine online school

  • @amazinggirl12
    @amazinggirl12 Před 14 lety +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

  • @yd1865
    @yd1865 Před 3 lety +11

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

  • @toxicvenom2883
    @toxicvenom2883 Před 4 lety +161

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

    • @benjaminglaubke7150
      @benjaminglaubke7150 Před 4 lety +9

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

    • @alexalou4616
      @alexalou4616 Před 4 lety +1

      Google classroom sent me here...

    • @YChwibanwr
      @YChwibanwr Před 4 lety +2

      I actually came to understand this.

    • @madiisonrivera
      @madiisonrivera Před 3 lety

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

    • @nyakelley6360
      @nyakelley6360 Před 3 lety

      What a wonderfully beautiful poem

  • @aaronalbert6985
    @aaronalbert6985 Před 5 lety +40

    Here two hours before my exam. lol

  • @xtra11farfoory
    @xtra11farfoory Před 12 lety +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 Před 2 lety +3

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

  • @carriecalorio3431
    @carriecalorio3431 Před 3 lety +7

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

  • @corey5454
    @corey5454 Před 9 lety +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 Před 8 lety +1

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

    • @YVNGNAMEK
      @YVNGNAMEK Před 8 lety

      +Gizelle Blanc U a freshman?

    • @corey5454
      @corey5454 Před 8 lety +1

      YVNG NAMEK Sophomore

    • @FrostySpade
      @FrostySpade Před 7 lety

      sammmeeeeeeee

    • @michellesantiago7999
      @michellesantiago7999 Před 6 lety

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

  • @empresslioness9964
    @empresslioness9964 Před 7 lety +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!!

  • @michellerosas3987
    @michellerosas3987 Před 7 lety +66

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

  • @mahdavimath22
    @mahdavimath22 Před 3 lety +7

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

  • @_G6_
    @_G6_ Před 8 lety +120

    Test tommorow 😅 thx

  • @MamaBear112311
    @MamaBear112311 Před 3 lety +7

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

  • @Blueberrysky
    @Blueberrysky Před 11 lety +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!

  • @sagellivokin
    @sagellivokin Před 10 lety +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!

  • @davis050594
    @davis050594 Před 12 lety +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 Před 3 lety

      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.

  • @WhichDoctor1
    @WhichDoctor1 Před 12 lety +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.

  • @mitzeysweetsong3342
    @mitzeysweetsong3342 Před 6 lety +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!

  • @tumblindice66
    @tumblindice66 Před 14 lety +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 Před 3 lety +1

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

  • @VedyaLovely95
    @VedyaLovely95 Před 12 lety

    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 Před 8 lety +4

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

  • @71Tman
    @71Tman Před 12 lety

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

  • @darksavior1187
    @darksavior1187 Před 7 lety +11

    Khan Academy is the best! Thank you!

  • @eyyubovvv
    @eyyubovvv Před 4 lety +3

    Ayyy watched this during my exam! Very helpful.

    • @all3tar
      @all3tar Před 3 lety

      du- during?? thats cheating

  • @TalesGrimm
    @TalesGrimm Před 8 lety +6

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

  • @1futuredre413
    @1futuredre413 Před 8 lety +3

    Thanks to this video i finally understand Punnett Squares

  • @janis8551
    @janis8551 Před 10 lety +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

  • @imjustsayin34
    @imjustsayin34 Před 10 lety +1

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

  • @StriveForExcellence2
    @StriveForExcellence2 Před 11 lety +2

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

  • @timetoflyyy
    @timetoflyyy Před 13 lety +1

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

  • @keyalrashmi07
    @keyalrashmi07 Před 7 lety +2

    You guys are doing a great job Khan academy !!

  •  Před 3 lety

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

  • @athirahmaridan
    @athirahmaridan Před 13 lety +1

    seriously it makes me want 2 learn biology more n more

  • @ASMEETKAUR-yf1dv
    @ASMEETKAUR-yf1dv Před 7 měsíci +7

    LEGENDS watching in 2024!!!!??😵

  • @xdarkdreamerx
    @xdarkdreamerx Před 12 lety +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.

  • @tangerinepaint3643
    @tangerinepaint3643 Před 6 lety

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

  • @ansaf911
    @ansaf911 Před 14 lety

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

  • @princemharialmejia6517
    @princemharialmejia6517 Před 7 lety +20

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

  • @ArmlessBandit
    @ArmlessBandit Před 13 lety +1

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

  • @serendipty70
    @serendipty70 Před 7 lety +1

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

  • @gosek006
    @gosek006 Před 14 lety

    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.

  • @619daphne
    @619daphne Před 13 lety +1

    wish i knew about kanacademy from long time!

  • @Nalamartuo
    @Nalamartuo Před 10 lety +126

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

    • @yukio9419
      @yukio9419 Před 9 lety +3

      lol...

    • @samsheikh7757
      @samsheikh7757 Před 9 lety +1

      Omfgggg.

    • @lagospickin
      @lagospickin Před 5 lety +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 Před 4 lety +1

      @@lagospickin Well said!

    • @DivineSeaDragon
      @DivineSeaDragon Před 4 lety +2

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

  • @shazaduh
    @shazaduh Před 14 lety +2

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

  • @ericamay4489
    @ericamay4489 Před 5 lety

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

  • @bleu4906
    @bleu4906 Před 4 lety

    Thank him by donating

  • @kotofu
    @kotofu Před 13 lety

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

  • @HafizahHoshni
    @HafizahHoshni Před 11 lety +2

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

  • @estiiim
    @estiiim Před 3 lety +1

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

  • @CristaFabulous
    @CristaFabulous Před 11 lety

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

  • @shrabastiadhya
    @shrabastiadhya Před 3 lety

    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!

  • @huntermackie1948
    @huntermackie1948 Před 7 lety

    Really Helpful For grade 9 Science Pray for Canada

  • @27capricia
    @27capricia Před 6 lety +1

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

  • @interestingmatters3-d137
    @interestingmatters3-d137 Před 7 lety +2

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

  • @71Tman
    @71Tman Před 12 lety

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

  • @Gator115
    @Gator115 Před 13 lety +3

    Ohhh my god this guy is amazing.

  • @valfredodematteis-poet
    @valfredodematteis-poet Před 4 lety +1

    you are an excellent teacher, thank you very much

  • @supSCUB4ST3V3
    @supSCUB4ST3V3 Před 10 lety +3

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

  • @mayathepanda3926
    @mayathepanda3926 Před 3 lety

    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

  • @fatemamultan
    @fatemamultan Před 5 lety +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 CZcams
    Like if u can relate

  • @dscience8
    @dscience8 Před 14 lety

    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!

  • @yanayanayana45
    @yanayanayana45 Před 11 lety

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

  • @josephajrab2839
    @josephajrab2839 Před 7 lety +146

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

  • @LalitKumar-yq1th
    @LalitKumar-yq1th Před 4 lety +1

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

  • @PolkaDotSunshine9
    @PolkaDotSunshine9 Před 11 lety +1

    This helped me so much. thank you sir

  • @kentong9514
    @kentong9514 Před 3 lety

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

  • @peterschafer5807
    @peterschafer5807 Před 3 lety

    [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❗❗❗✨

  • @nirajrm
    @nirajrm Před 13 lety

    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 Před 2 lety

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

  • @crozzy27
    @crozzy27 Před 15 lety +2

    great stuff as usual!

  • @trumpet44girl
    @trumpet44girl Před 13 lety

    My Geometry teacher knows this guy!

  • @joshuahurtado5292
    @joshuahurtado5292 Před 4 lety +4

    Test today 😂 last moment studying

  • @ClientideStudios
    @ClientideStudios Před 10 lety +6

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

  • @gambinoancient9444
    @gambinoancient9444 Před 9 lety +1

    THANK YOU

  • @florecita771000
    @florecita771000 Před 13 lety

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

  • @crazeepuffs2515
    @crazeepuffs2515 Před 10 lety +1

    Its supposed to be Gregor Mendel :D

  • @BigEdJon
    @BigEdJon Před 12 lety

    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

  • @paul.marley
    @paul.marley Před 13 lety

    thanks from germany!
    better then our lessons...

  • @zoeybabyblue
    @zoeybabyblue Před 12 lety

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

  • @haitianj2010
    @haitianj2010 Před 13 lety

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

  • @abdelrahmangamalmahdy
    @abdelrahmangamalmahdy Před 9 lety +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 ?!

  • @fauxdesire1
    @fauxdesire1 Před 12 lety

    passing my exam tomorrow because of you.

  • @basantaAdhikari-hd9hw
    @basantaAdhikari-hd9hw Před 2 měsíci

    2024 is the best minute for a watch 1:45

  • @maekosin
    @maekosin Před 9 lety

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

  • @kamilantwin1
    @kamilantwin1 Před 6 lety

    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??

  • @sruthi195
    @sruthi195 Před 7 lety +10

    Is the dominant allele always represented by the capital letter?

    • @gerbiegaming7476
      @gerbiegaming7476 Před 7 lety +7

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

    • @2MC
      @2MC Před 7 lety +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 Před 5 lety

      Yes

  • @kamtha7
    @kamtha7 Před 13 lety

    thank you for all your informative videos.

  • @user-vv1ry8lv1f
    @user-vv1ry8lv1f Před 11 měsíci

    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?

  • @ANGRYBEAST592
    @ANGRYBEAST592 Před 11 lety

    Thanks Khan really helped me!

  • @hiraashraf2419
    @hiraashraf2419 Před 9 lety

    excellent explanation doc

  • @xBellaable
    @xBellaable Před 11 lety

    If you did do that cross, it would be Bb, Bb, bb, bb. You wouldn't have a homozygous dominant, just to let you know.

  • @learningsciencechannel1894

    Very informative❤️

  • @LeandraRose1776
    @LeandraRose1776 Před 12 lety

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

  • @aislinnfolan
    @aislinnfolan Před 13 lety +2

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

  • @hasnat805
    @hasnat805 Před 13 lety

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

  • @youngamerz
    @youngamerz Před 2 lety

    Imagine having him as your teacher in scuul

  • @mtlolz21
    @mtlolz21 Před 12 lety

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

  • @rileyXO22400
    @rileyXO22400 Před 11 lety

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