Dominance & segregation laws | Heredity & Evolution | Biology | Khan Academy

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  • Опубликовано: 26 ноя 2024

Комментарии • 288

  • @Diksha_Sharma10
    @Diksha_Sharma10 4 года назад +185

    Sir you had really developed an amazing style of teaching.l am speechless🤐🤐.It was fabulous!!

  • @kanikadahiya120
    @kanikadahiya120 2 года назад +85

    📌• Dominant traits are the traits which express themselves in the generation WHEREAS Recessive traits are those traits which are hidden and can't express themselves in the next generation .
    📌• Law of segregation is also known as law of purity of gamates or the law of separation. It states that the alleles are separated to the gametes during meosis , so that the alleles will not get mixed. And always pure gamates are transferred to the offspring.
    📌• Phenotypic Ratio of the offsprings - 2:2
    Genotypic Ratio - 2:2

    • @DhirajKumar-zo3mu
      @DhirajKumar-zo3mu 2 года назад

      @@leviackerman4713 well i guess I am wrong

    • @leviackerman4713
      @leviackerman4713 2 года назад

      @@DhirajKumar-zo3mu yes you are

    • @jozmit6640
      @jozmit6640 2 года назад +3

      In the class he explained that ratio should be 3:1 how did I get 2:2

    • @nezukochan471
      @nezukochan471 Год назад

      @@jozmit6640 we is walking here

    • @Icarus_8090
      @Icarus_8090 Год назад

      Your ratio is wrong

  • @joum96
    @joum96 3 года назад +276

    This just calls my education fees a joke.

    • @ErenMC_
      @ErenMC_ 3 года назад +3

      ? I didn't understand

    • @sereinlcve
      @sereinlcve 2 года назад +20

      @@ErenMC_ ig the person means the fees they pay is just a joke cause this vid is better despite being free of cost(?)

    • @introvertplayz2460
      @introvertplayz2460 2 года назад +5

      @@sereinlcve yup probably
      And i see why he said that LoL

    • @sidhpravi1659
      @sidhpravi1659 Год назад +1

      just like ur lost dad

    • @amelias.wodehouse4064
      @amelias.wodehouse4064 Год назад +1

      Nope

  • @geetugupta7244
    @geetugupta7244 2 года назад +20

    Khan academy is seriously awesome...I mean you sir....definitely are....I feel so bad that I discovered this channel so late...!

  • @keshvi5521
    @keshvi5521 2 года назад +8

    May god bless him!!!I was so confused at first but now I feel like a pro

  • @habibaalam86
    @habibaalam86 3 года назад +28

    Im from Bangladesh..after watching a lot of videos on this chapter i ended up here and Im sure these will be my last videos on genetics cause i got all the answers i was searching for....thank you so much for these amazing lessons... Explanation was really fascinating... Thanks once again🙏❤️

    • @banchhodaschatriwala1498
      @banchhodaschatriwala1498 2 года назад +2

      Yeah this is a chapter which you generally can't understand easily ... And i am also here because I wasn't able to understand this topic from other PPL and i got the reason that is visualisation may this help me in my boards finger crossed

    • @SAGOR-o5b
      @SAGOR-o5b Год назад

      Same from bd🇧🇩

  • @muhammedajmal1126
    @muhammedajmal1126 Год назад +5

    Much better than the other videos on you tube ✨
    Much understandable concept he made it for me 💯

  • @yoshinara2005
    @yoshinara2005 3 года назад +10

    well explained 👏I didn't even realised when this video finished, this is wholesome 🌼🦋

  • @fbtbtbtbtntb
    @fbtbtbtbtntb 2 года назад +18

    God level explanation 🔥🔥🔥🔥🔥
    Finally my search ends here for this topic❤️🔥

  • @itidatahb
    @itidatahb Год назад +1

    Dominant traits are those traits which are able to express themselves in heterozygous condition
    Recessive traits are the one which can't express themselves in heterozygous condition.
    Law of segregation states that during gamete formation, alleles get separated
    Ratio of offsprings-1:1

  • @lofimusic12369
    @lofimusic12369 4 года назад +17

    thanks from my every cell

  • @jinpant
    @jinpant 3 года назад +6

    Love all the teachings.. thank u so much. Makes online studying so much easier and so much fun.

  • @meghamiddha5606
    @meghamiddha5606 2 года назад +5

    Best explanation till now for this topic!

  • @sharanyasrivastava3680
    @sharanyasrivastava3680 Год назад +3

    Study Mandel's cross between two plants with a pair contrasting characters:
    RRYY. ×. rryy
    Round Yellow. ( Wrinkled Green)
    He observed four types of combination in F2 generation. Which of these were new combination?Why do new features which are not present in the parents appear in F2 generation?
    Answer plz 🥺

  • @fgcxfg
    @fgcxfg Год назад +2

    From Nepal. It's absolutely amazing to learn from like you sir.

  • @rihundeimonsyngkon6240
    @rihundeimonsyngkon6240 4 года назад +10

    Thank you for the explanation. It really helps

  • @pridhisoni3789
    @pridhisoni3789 2 года назад +5

    Mind blowing explanation. May God bless you guys, seriously! ❤️

  • @kundank8588
    @kundank8588 Год назад +4

    Sir you are soo good in teaching... and that suspense u create is just WOW!!!🤩🤩🤩

  • @sonalidate5455
    @sonalidate5455 2 года назад +5

    You deserve lot sir🙂❤️great explanation thank you 😌

  • @Bhavika_m
    @Bhavika_m 3 года назад

    I have 22 year old friend and your way of talking reminds me of her so much..

  • @sardarzulfiqarahmed5396
    @sardarzulfiqarahmed5396 5 дней назад

    Love from Pakistan ❤
    I enjoy the way u teach 😊
    May god bless u 💖
    We all need a teacher like u 💞
    Loved the way ❤

  • @ipeopleume
    @ipeopleume 11 месяцев назад

    * dominant traits are the traits which express themselves in a generation whereas recessive traits are hidden and do not express themselves.
    * law of segregations states that when a trait is passed into a gamete , it gets separated
    *3:1

  • @artshub242
    @artshub242 3 года назад +9

    Yah! I can recall the question
    1. Dominant traits are those that express themselves even in the presence of an alternative gene whereas recessive traits are those that can't express themselves in the presence of alternative gene
    2. It is law in which the genes separate out
    3. 3:1 am I right????

    • @suraj_Suraj
      @suraj_Suraj 3 года назад +3

      Answer for 3rd should be 2:2.

    • @manikonda2serilingampallyu790
      @manikonda2serilingampallyu790 3 года назад +1

      Yes 3rd answer is 2:2
      Because, we get the traits like this
      Tt,tt,Tt,tt so here we are getting 2 tall traits and 2 short traits
      Hence the ratio is 2:2

    • @pradeepdas1640
      @pradeepdas1640 3 года назад +6

      Hey i think it is 1:1
      As in ratio common factor is cancelled.....

    • @lone8398
      @lone8398 3 года назад

      @@pradeepdas1640 math's dude

    • @isoften467
      @isoften467 3 года назад

      @@suraj_Suraj yeah me tooo got same answer

  • @nagendranjayapal9202
    @nagendranjayapal9202 11 месяцев назад +2

    Sir thank you soo much 😊
    Explanation is very good. 😊

  • @pvlnsriram1604
    @pvlnsriram1604 11 месяцев назад +1

    Oh my oh oh my god 🤩🤩🤩🤩 thank you so much 😊😊😊😊😊😊😊😊😊

  • @shreyasravichandran2735
    @shreyasravichandran2735 4 года назад +7

    Sir thank you alot for helping me.

  • @arj1898
    @arj1898 3 года назад +6

    Excellent explanation, great efforts are seen in your video. Nice work KHAN ACADEMY INDIA

  • @chloegill9493
    @chloegill9493 3 года назад +4

    this is extremely helpful - thank you!

  • @yoihenbath
    @yoihenbath 4 года назад +14

    The Anwer of 3 is 2:2.

  • @jayanthi8361
    @jayanthi8361 2 года назад +2

    A Wonderful lesson .......Thank you soo much sir☺️☺️☺️

  • @ashwinijois8777
    @ashwinijois8777 4 года назад +7

    Very well explained... thank you

  • @palanivellaxmanan9122
    @palanivellaxmanan9122 Год назад +1

    Tomorrow is my exam I was worried about this topic very much.Thanks bro

  • @oz4959
    @oz4959 2 года назад +6

    Khan academy!! The video is fabulous
    But I have a question that I am struggling with since a long time
    Can anyone please answer me?
    My question is- In genotype Tt, the letters Tt collectively represent a single gene or the letter T is a separate gene and letter t is a separate gene?
    And what are alleles???
    If you know the answer, please help me
    Your one reply can clear my doubt🙏

    • @butimnotsid
      @butimnotsid 2 года назад

      Bro T and t are the two alleles for the charachter of height. They are like 2 varients of a same charachter. Likewise in the case of flowers Chrachter is Flower color and the alleles would be Violet and White i.e. varients of the charachter.
      TT, Tt and tt represent genotypes.
      Alleles are points on a gene which expresses certain varient of a charachter. Example,lets say we are studying the Charachter of eye color on a gene located on Chromosome 2 then the alleles would be Blue, Green, Black, Brown etc.

    • @oz4959
      @oz4959 2 года назад

      @@butimnotsid Got it✌️
      Thanks a lot....wonderful explanation

    • @butimnotsid
      @butimnotsid 2 года назад

      @@oz4959 :)

    • @shatakshi-wr1gj
      @shatakshi-wr1gj 9 месяцев назад

      Love to see that people are willing to help you ......
      Selfless help ❤❤❤

    • @shatakshi-wr1gj
      @shatakshi-wr1gj 9 месяцев назад

      ​@oz4959 good job bro
      You really prove you are raised right

  • @esheykar9845
    @esheykar9845 2 года назад +2

    So clearly explained!!!🤗

  • @ananyapriyadarshinisahoo4709
    @ananyapriyadarshinisahoo4709 Год назад +1

    Thank you

  • @amardevsingh6200
    @amardevsingh6200 3 года назад +2

    fantastic way of teaching

  • @azdiaries
    @azdiaries 2 года назад +1

    Thank you so much sir...understood it very well

  • @vijaychouhan5462
    @vijaychouhan5462 4 месяца назад

    It is very easy and amazing method to understand this law i am very impressed with it.

  • @nh6946
    @nh6946 Год назад +1

    you'r explanation is rellay really helpful and amazing

  • @chelsapinky5682
    @chelsapinky5682 3 года назад +2

    Explaination🔥

  • @prishashah7616
    @prishashah7616 Год назад +2

    so what's the difference between the law of segregation and the law of independent assortment?

  • @heshameldebeik8772
    @heshameldebeik8772 2 года назад +3

    that's really amazing bro, u made it looks so easy❤

  • @shivajikadam4424
    @shivajikadam4424 3 года назад +3

    Ans of 3rd question is-2:2

  • @muhammadsomaan2641
    @muhammadsomaan2641 3 года назад +2

    Wow,, amazing sir🥺🥺🤩🤩

  • @shreyanshtalks9276
    @shreyanshtalks9276 3 года назад +2

    Superb explanation sir

  • @omshukla89
    @omshukla89 Год назад +2

    Heredity is such a complex topic

  • @BlessingOkonkwo-k4u
    @BlessingOkonkwo-k4u Месяц назад

    I love your video thank you😊😊😊😊

  • @amisharath8058
    @amisharath8058 Год назад

    Thank u so much sir I was really confused in this chapter, but you explained it beautifully

  • @pvlnsriram1604
    @pvlnsriram1604 11 месяцев назад

    Come on the great teacher 🎉🎉

  • @humairaajaz1880
    @humairaajaz1880 3 месяца назад

    U r great sir,u explained in a brilliant way

  • @utkarshutsav8406
    @utkarshutsav8406 4 года назад +17

    How could someone dislike this! 😘

  • @HarshitKumar-fl4ko
    @HarshitKumar-fl4ko Год назад

    most underrated youtube studying channel

  • @shivajikadam4424
    @shivajikadam4424 3 года назад +2

    Really very nice 👌 👍 explanation 👌

  • @karishmasgalaxy6
    @karishmasgalaxy6 3 месяца назад

    love ur explanation 🥰👏👏

  • @terrylee.to.olivier310
    @terrylee.to.olivier310 Год назад

    Literally u save my marks thank 😊 for explaining

  • @Randomguy-ii2tv
    @Randomguy-ii2tv Год назад

    Thank you so much sir , i was struggling alot in this chapter.

  • @emmanuellaeledu
    @emmanuellaeledu 7 месяцев назад

    Wonderful!!!

  • @rushdamariam3860
    @rushdamariam3860 6 месяцев назад

    beautiful explanation

  • @sakshiojha76
    @sakshiojha76 3 года назад +1

    Amazing.. concept fully clears👍👍

  • @MandisMalen
    @MandisMalen 8 месяцев назад

    Well explained. 🙏🙏

  • @soubhagyashreesenapati1381
    @soubhagyashreesenapati1381 3 года назад +1

    It's really amazing🤩🤩😍😍👍👍

  • @sabunkambule3125
    @sabunkambule3125 4 года назад +4

    Thank you so much. This was helpful

  • @skullbee5269
    @skullbee5269 4 года назад +12

    14:30 maybe BLUE came from F1 Grandparents ??

    • @Bonkify69
      @Bonkify69 3 года назад +5

      Bangur cement - sasta nhi sabse achcha

    • @skullbee5269
      @skullbee5269 3 года назад +1

      @@Bonkify69 🙂👽👽

    • @Bonkify69
      @Bonkify69 3 года назад

      @@skullbee5269 🙃

    • @ragurock1777
      @ragurock1777 3 года назад +1

      @@Bonkify69 😂😂

    • @Bonkify69
      @Bonkify69 3 года назад +1

      @@ragurock1777 👌🏻👌🏻

  • @nandkishorcharpe509
    @nandkishorcharpe509 Год назад

    1:2:1 is a genotypic ratio
    3:1 is a phenotypic ratio...

  • @rondlabhanuprasadreddy2735
    @rondlabhanuprasadreddy2735 3 года назад +1

    Tqsm sir

  • @sriniketank.j4704
    @sriniketank.j4704 25 дней назад

    Perfect

  • @rayonrobin1622
    @rayonrobin1622 2 года назад +1

    0:10 Seems like Markus is up for some shocking news.

  • @Presentenia
    @Presentenia Год назад

    Wow!

  • @zidkay7489
    @zidkay7489 4 года назад +6

    Good Job!

  • @shivamkadam4183
    @shivamkadam4183 5 лет назад +4

    Fabulously explained

  • @Amanpreetkaur-cp4fs
    @Amanpreetkaur-cp4fs Год назад

    Very good teching 🎉🎉

  • @chaitanyamallick7525
    @chaitanyamallick7525 4 года назад +3

    Sir I am proud of you because you are a teacher who analyses every aspect of content and tell Indian english and teach with wh questions.so I salute u

    • @gayathrivijay4602
      @gayathrivijay4602 4 года назад +1

      He isn't proud of the Indian accent though, he fakes an accent.

  • @Presentenia
    @Presentenia Год назад

    Love you sir

  • @lalsiamlian5431
    @lalsiamlian5431 2 года назад +2

    Been searching this kind of explanation for hour😭 finally😭

  • @uneemmrokoz5455
    @uneemmrokoz5455 3 года назад +3

    0:01 SO SIMPLE.......HE IS ADOPTED 😂😂😂😂😂😂😂😂

  • @BhatsParadise2024
    @BhatsParadise2024 11 месяцев назад

    Excellent❤

  • @pondyrai8981
    @pondyrai8981 3 года назад +1

    Super sir

  • @alizafatima8072
    @alizafatima8072 Год назад

    Can you please tell me which application or software you use to create these videos

  • @microwave6696
    @microwave6696 4 года назад +2

    You are a legend!

  • @happyhappyhappyeee
    @happyhappyhappyeee 8 месяцев назад

    I think you have a crush on your beautiful blue-eyed friend man.
    (Great vid tho, love it)

  • @Coffeetuba
    @Coffeetuba Месяц назад

    Understood the things in one goo ggs man

  • @KenenisaAuturaAutura
    @KenenisaAuturaAutura 5 месяцев назад

    You are teacher

  • @vachanabhiremath207
    @vachanabhiremath207 Год назад

    the ratio is 2:2 for the last question

  • @joyatrasamanta5934
    @joyatrasamanta5934 7 месяцев назад

    good

  • @jorawardeora3410
    @jorawardeora3410 4 года назад +1

    Thanku sir U have great teaching skills

  • @helperboy1065
    @helperboy1065 Год назад

    12:21 sir i have a doubt.... Here it may have tall trait as rececessive ?means (Tt) but T is recessive? 😢 help

  • @kaushaljain5999
    @kaushaljain5999 4 года назад +4

    The ans.of 3rd is 1:1

  • @HOW2Bsuccessfull
    @HOW2Bsuccessfull 10 месяцев назад +3

    Mendal and his PEAS.💀

  • @simratsingh593
    @simratsingh593 4 года назад +1

    Thnxxx sir it really help me to understand 🙏🙏🤘🤘

  • @shubhammehta4938
    @shubhammehta4938 Год назад +1

    0:03

  • @ahamasarp6284
    @ahamasarp6284 3 года назад +1

    whenever he explains, everything goes straightly into my brain

  • @priyankarakshit4134
    @priyankarakshit4134 3 года назад +2

    Such an amazing explanation... Really liked it..
    Thank you so much sir...
    You are great...🙏

  • @Bauua18
    @Bauua18 3 года назад +1

    Why taller plant had dominace?

  • @sriniketank.j4704
    @sriniketank.j4704 25 дней назад

    8:06 i can do that without pausing

  • @akshitsinha473
    @akshitsinha473 2 года назад +2

    0:03
    Maybe your friend's mom was cheating with his dad 😂😂

  • @diminished802
    @diminished802 2 года назад +1

    9:18

  • @shubhammehta4938
    @shubhammehta4938 Год назад

    1:00

  • @Saidulislam-yi8ux
    @Saidulislam-yi8ux 4 года назад +1

    Soo awesome

  • @ErenMC_
    @ErenMC_ 3 года назад

    The last question answer is 1/2 right?

  • @jozmit6640
    @jozmit6640 2 года назад +1

    Someone help me with third question unable to get the answer