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

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Let's learn Mendel's law of dominance & segregation
More free lessons & practice -www.khanacademy.org/science/i...
Khan Academy is a nonprofit organization with the mission of providing free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
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26 июл 2019

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Комментарии : 270   
@joum96
@joum96 3 года назад
This just calls my education fees a joke.
@ErenMC_
@ErenMC_ 2 года назад
? I didn't understand
@amethystmk
@amethystmk 2 года назад
@@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
@@amethystmk yup probably And i see why he said that LoL
@sidhpravi1659
@sidhpravi1659 Год назад
just like ur lost dad
@amelias.wodehouse4064
@amelias.wodehouse4064 11 месяцев назад
Nope
@Diksha_Sharma10
@Diksha_Sharma10 3 года назад
Sir you had really developed an amazing style of teaching.l am speechless🤐🤐.It was fabulous!!
@dikshaaggarwal6174
@dikshaaggarwal6174 3 года назад
Hey my name is also diksha
@akshitmeenia6489
@akshitmeenia6489 3 года назад
@@dikshaaggarwal6174 and my name is DickShant😐
@anshumanpandey6672
@anshumanpandey6672 3 года назад
Ho🧖🦉
@chetnasolanki719
@chetnasolanki719 3 года назад
@@dikshaaggarwal6174 me too
@fingorchipz8662
@fingorchipz8662 2 месяца назад
​@@hansvonmeinstien3660 who asked?
@kanikadahiya120
@kanikadahiya120 2 года назад
📌• 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 Год назад
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_sun860
@Icarus_sun860 Год назад
Your ratio is wrong
@geetugupta7244
@geetugupta7244 Год назад
Khan academy is seriously awesome...I mean you sir....definitely are....I feel so bad that I discovered this channel so late...!
@habibaalam86
@habibaalam86 2 года назад
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
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
@technicalsagor400
@technicalsagor400 9 месяцев назад
Same from bd🇧🇩
@muhammedajmal1126
@muhammedajmal1126 6 месяцев назад
Much better than the other videos on you tube ✨ Much understandable concept he made it for me 💯
@keshvi5521
@keshvi5521 Год назад
May god bless him!!!I was so confused at first but now I feel like a pro
@yoshinara2005
@yoshinara2005 2 года назад
well explained 👏I didn't even realised when this video finished, this is wholesome 🌼🦋
@lofimusic12369
@lofimusic12369 3 года назад
thanks from my every cell
@KaranjyotiDeka
@KaranjyotiDeka 2 года назад
God level explanation 🔥🔥🔥🔥🔥 Finally my search ends here for this topic❤️🔥
@jinpant
@jinpant 3 года назад
Love all the teachings.. thank u so much. Makes online studying so much easier and so much fun.
@kundank8588
@kundank8588 Год назад
Sir you are soo good in teaching... and that suspense u create is just WOW!!!🤩🤩🤩
@rihundeimonsyngkon6240
@rihundeimonsyngkon6240 3 года назад
Thank you for the explanation. It really helps
@yoihenbath
@yoihenbath 3 года назад
The Anwer of 3 is 2:2.
@sudharam283
@sudharam283 3 года назад
hi ARMY😀💜
@khurshidafirdaush4574
@khurshidafirdaush4574 3 года назад
Same I have got the Sam ans
@manikonda2serilingampallyu790
@manikonda2serilingampallyu790 3 года назад
Yaa its correct
@pridhisoni3789
@pridhisoni3789 2 года назад
Mind blowing explanation. May God bless you guys, seriously! ❤️
@ashwinijois8777
@ashwinijois8777 4 года назад
Very well explained... thank you
@meghamiddha5606
@meghamiddha5606 2 года назад
Best explanation till now for this topic!
@arj1898
@arj1898 2 года назад
Excellent explanation, great efforts are seen in your video. Nice work KHAN ACADEMY INDIA
@chloegill9493
@chloegill9493 2 года назад
this is extremely helpful - thank you!
@fgcxfg
@fgcxfg Год назад
From Nepal. It's absolutely amazing to learn from like you sir.
@skullbee5269
@skullbee5269 3 года назад
14:30 maybe BLUE came from F1 Grandparents ??
@Bonkify69
@Bonkify69 3 года назад
Bangur cement - sasta nhi sabse achcha
@skullbee5269
@skullbee5269 3 года назад
@@Bonkify69 🙂👽👽
@Bonkify69
@Bonkify69 3 года назад
@@skullbee5269 🙃
@ragurock1777
@ragurock1777 3 года назад
@@Bonkify69 😂😂
@Bonkify69
@Bonkify69 3 года назад
@@ragurock1777 👌🏻👌🏻
@shreyasravichandran2735
@shreyasravichandran2735 3 года назад
Sir thank you alot for helping me.
@sakshiojha76
@sakshiojha76 2 года назад
Amazing.. concept fully clears👍👍
@esheykar9845
@esheykar9845 Год назад
So clearly explained!!!🤗
@sonalidate5455
@sonalidate5455 2 года назад
You deserve lot sir🙂❤️great explanation thank you 😌
@Bhavika_m
@Bhavika_m 2 года назад
I have 22 year old friend and your way of talking reminds me of her so much..
@jayanthi8361
@jayanthi8361 Год назад
A Wonderful lesson .......Thank you soo much sir☺️☺️☺️
@heshameldebeik8772
@heshameldebeik8772 2 года назад
that's really amazing bro, u made it looks so easy❤
@amardevsingh6200
@amardevsingh6200 2 года назад
fantastic way of teaching
@azdiaries
@azdiaries 2 года назад
Thank you so much sir...understood it very well
@palanivellaxmanan9122
@palanivellaxmanan9122 8 месяцев назад
Tomorrow is my exam I was worried about this topic very much.Thanks bro
@emmanuellaeledu
@emmanuellaeledu Месяц назад
Wonderful!!!
@pvlnsriram1604
@pvlnsriram1604 5 месяцев назад
Oh my oh oh my god 🤩🤩🤩🤩 thank you so much 😊😊😊😊😊😊😊😊😊
@artshub242
@artshub242 3 года назад
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
Answer for 3rd should be 2:2.
@manikonda2serilingampallyu790
@manikonda2serilingampallyu790 3 года назад
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
Hey i think it is 1:1 As in ratio common factor is cancelled.....
@lone8398
@lone8398 2 года назад
@@pradeepdas1640 math's dude
@isoften467
@isoften467 2 года назад
@@suraj_Suraj yeah me tooo got same answer
@shivajikadam4424
@shivajikadam4424 3 года назад
Really very nice 👌 👍 explanation 👌
@amisharath8058
@amisharath8058 7 месяцев назад
Thank u so much sir I was really confused in this chapter, but you explained it beautifully
@juggernaut2338
@juggernaut2338 10 месяцев назад
Thank you so much ! it was very clear
@nagendranjayapal9202
@nagendranjayapal9202 5 месяцев назад
Sir thank you soo much 😊 Explanation is very good. 😊
@chelsapinky5682
@chelsapinky5682 3 года назад
Explaination🔥
@soubhagyashreesenapati1381
@soubhagyashreesenapati1381 3 года назад
It's really amazing🤩🤩😍😍👍👍
@nh6946
@nh6946 Год назад
you'r explanation is rellay really helpful and amazing
@muhammadsomaan2641
@muhammadsomaan2641 3 года назад
Wow,, amazing sir🥺🥺🤩🤩
@shreyanshtalks9276
@shreyanshtalks9276 2 года назад
Superb explanation sir
@sharanyasrivastava3680
@sharanyasrivastava3680 6 месяцев назад
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 🥺
@MandisMalen
@MandisMalen Месяц назад
Well explained. 🙏🙏
@utkarshutsav8406
@utkarshutsav8406 3 года назад
How could someone dislike this! 😘
@shaivikmishra3877
@shaivikmishra3877 3 года назад
They need someone to taught them in their respective languages
@prem7508
@prem7508 3 года назад
Ediot
@hardiksingh8329
@hardiksingh8329 3 года назад
Haters gonna hate it
@ygpebbleinthpocket
@ygpebbleinthpocket 3 года назад
they're called bots :)
@simratsingh593
@simratsingh593 3 года назад
@@prem7508 it is "idiot" Not ediot understand idiot
@pvlnsriram1604
@pvlnsriram1604 5 месяцев назад
Come on the great teacher 🎉🎉
@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.
@HarshitKumar-fl4ko
@HarshitKumar-fl4ko Год назад
most underrated youtube studying channel
@oz4959
@oz4959 2 года назад
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 Год 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 Год назад
@@butimnotsid Got it✌️ Thanks a lot....wonderful explanation
@butimnotsid
@butimnotsid Год назад
@@oz4959 :)
@shatakshi-wr1gj
@shatakshi-wr1gj 3 месяца назад
Love to see that people are willing to help you ...... Selfless help ❤❤❤
@shatakshi-wr1gj
@shatakshi-wr1gj 3 месяца назад
​@oz4959 good job bro You really prove you are raised right
@ananyapriyadarshinisahoo4709
@ananyapriyadarshinisahoo4709 6 месяцев назад
Thank you
@chandrikakadekar
@chandrikakadekar 5 месяцев назад
Excellent❤
@Amanpreetkaur-cp4fs
@Amanpreetkaur-cp4fs 7 месяцев назад
Very good teching 🎉🎉
@prishashah7616
@prishashah7616 Год назад
so what's the difference between the law of segregation and the law of independent assortment?
@rushdamariam3860
@rushdamariam3860 21 день назад
beautiful explanation
@itidatahb
@itidatahb Год назад
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
@omshukla89
@omshukla89 6 месяцев назад
Heredity is such a complex topic
@shivamkadam4183
@shivamkadam4183 4 года назад
Fabulously explained
@Presentenia
@Presentenia Год назад
Wow!
@rondlabhanuprasadreddy2735
@rondlabhanuprasadreddy2735 3 года назад
Tqsm sir
@akshitsinha473
@akshitsinha473 Год назад
0:03 Maybe your friend's mom was cheating with his dad 😂😂
@zidkay7489
@zidkay7489 4 года назад
Good Job!
@pondyrai8981
@pondyrai8981 3 года назад
Super sir
@RanjanaSharma-sf7cl
@RanjanaSharma-sf7cl 4 месяца назад
Mendal and his PEAS.💀
@Presentenia
@Presentenia Год назад
Love you sir
@happyhappyhappyeee
@happyhappyhappyeee 2 месяца назад
I think you have a crush on your beautiful blue-eyed friend man. (Great vid tho, love it)
@joyatrasamanta5934
@joyatrasamanta5934 Месяц назад
good
@shivajikadam4424
@shivajikadam4424 3 года назад
Ans of 3rd question is-2:2
@uneemmrokoz5455
@uneemmrokoz5455 3 года назад
0:01 SO SIMPLE.......HE IS ADOPTED 😂😂😂😂😂😂😂😂
@rowdygy5425
@rowdygy5425 3 года назад
😂😂😂😂😂
@ishita8823
@ishita8823 2 года назад
LMAOOO
@ishpreetsingh1046
@ishpreetsingh1046 7 месяцев назад
Thank you Yasmeen ma'am for sharing this video in our class group Myself Ishpreet Singh Bhatia Class-10D
@jorawardeora3410
@jorawardeora3410 3 года назад
Thanku sir U have great teaching skills
@ahamasarp6284
@ahamasarp6284 3 года назад
whenever he explains, everything goes straightly into my brain
@ipeopleume
@ipeopleume 5 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
@microwave6696
@microwave6696 3 года назад
You are a legend!
@alizafatima8072
@alizafatima8072 Год назад
Can you please tell me which application or software you use to create these videos
@unaninadelmundo
@unaninadelmundo 2 месяца назад
I can't ignore that 'THALL PPHLANTS'😂
@priyankarakshit4134
@priyankarakshit4134 3 года назад
Such an amazing explanation... Really liked it.. Thank you so much sir... You are great...🙏
@simratsingh593
@simratsingh593 3 года назад
Thnxxx sir it really help me to understand 🙏🙏🤘🤘
@helperboy1065
@helperboy1065 6 месяцев назад
12:21 sir i have a doubt.... Here it may have tall trait as rececessive ?means (Tt) but T is recessive? 😢 help
@shashankbhushansen7511
@shashankbhushansen7511 3 года назад
Thank sir you explain very well 😇😇😇
@gitanjalisahoo1836
@gitanjalisahoo1836 4 месяца назад
It means the friend's father and mother were brother and sister 😂
@rayonrobin1622
@rayonrobin1622 2 года назад
0:10 Seems like Markus is up for some shocking news.
@nandkishorcharpe509
@nandkishorcharpe509 6 месяцев назад
1:2:1 is a genotypic ratio 3:1 is a phenotypic ratio...
@chaitanyamallick7525
@chaitanyamallick7525 4 года назад
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 3 года назад
He isn't proud of the Indian accent though, he fakes an accent.
@jozmit6640
@jozmit6640 Год назад
Someone help me with third question unable to get the answer
@alibasha8170
@alibasha8170 3 года назад
💯
@shubhammehta4938
@shubhammehta4938 Год назад
0:03
@diminished802
@diminished802 2 года назад
9:18
@Saidulislam-yi8ux
@Saidulislam-yi8ux 3 года назад
Soo awesome
@Hate484
@Hate484 2 года назад
Why taller plant had dominace?
@varshithakanithi9931
@varshithakanithi9931 3 года назад
Really nice fabulous 👍
@shubhammehta4938
@shubhammehta4938 Год назад
1:00
@shubhammehta4938
@shubhammehta4938 Год назад
0:55
@shubhammehta4938
@shubhammehta4938 Год назад
0:06
@geetugupta7244
@geetugupta7244 Год назад
7:02 EGGH!!...lol, so sus while saying it..?
@shubhammehta4938
@shubhammehta4938 Год назад
0:39
@ErenMC_
@ErenMC_ 2 года назад
The last question answer is 1/2 right?
@vachanabhiremath207
@vachanabhiremath207 Год назад
the ratio is 2:2 for the last question
@tismeetkaur9835
@tismeetkaur9835 3 года назад
sir is this is for sure that Tt in this situation t is recessive and how is this sure that t will be reccessive?
@hardikgupta6693
@hardikgupta6693 3 года назад
See first of all, in F1 generation, all the plants were tall and none of them were short, which indicated that the tallness trait was expressed and the shortness trait was hidden. So we concluded that Tallness is dominant and we named as 'T' and shortness is recessive which we denote with 't'. 👍Samjhe? 🙏🙏
@hardikgupta6693
@hardikgupta6693 3 года назад
I hope it satisfies
@hardikgupta6693
@hardikgupta6693 3 года назад
👍
@tismeetkaur9835
@tismeetkaur9835 3 года назад
@@hardikgupta6693 arey ty soo much hardik u helped me finally😊
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