Sir very very thank you!! what an amazing explanation I´ve seen! Im from Mexico and no one in my school could explain this better than you did! congratulations!
In bottle neck we lose gene pool Eg if initially we have 100 tigers & due to some human interference or Natural disaster 90 tigers die & we r left with 10. Now if we will breed the left 10 tigers & then make them back 100 What we lose here is Gene pool as the 90 tigers we lost may have certain Genes which may have some benefits like fighting a particular disease but here we lost them.
you are right Wani Javid, bottleneck events lower genetic variation in the population. As the population size becomes smaller due to certain events like natural calamities, the changes in allele frequency becomes highly evident with majority of individuals in the population having either more recessive or dominant alleles. In short genetic variation is very less among the individuals in that particular population. Even when the population size increases in the future also the variation in the population remains low which is highly detrimental for survival. The same is true for founder effect, it decreases the genetic variation in the population. he rightly explained that part with example of people from Africa.
thank you so much sir.. i am doing Ph.D in human genetics but the concept of genetic drift was not cleared til now.. i was always confused by bottleneck and founder effect.. you made it so easy nd logical.. thanks alot.. keep helping :)
Amazing Way to Explain God bless You Sir You R My Fvrt Sir of Biology Since Class 12 Now am the Student Of 6 th semester 🎉Again Thank You For Such Easy Explanation
Dada the Graf you showed is nowhere available.and nobody tolled what actually is this Genetic Drift. Thank you. You are a great Blessing to The People of India.
Your accent is very very strong, making hard to focus at first for a foreigner like me ; but when the focus is put on what you say, the explanation is absolutely perfect ! Thank you !
for the founder effect it is the classical example...The Afrikaner population of South Africa is mainly descended from one shipload of Dutch people ... The ship of 1652 contained a Dutch man carrying the gene for Huntington's disease,... very good reading
Allele and Alleles need clarification, and the classical example of bottleneck effect you mentioned is the population of Northern elephant seals....hunting reduced their numbers to 20 around the year 1890s
The allele clock does not beat metronomically. Multitudes of factors influence genetic "drift". Keeping it simple, access to water, exposure to variable weather effects plants' growth rates and cycles. As does mineral composition of soil. And eating plants and animals in different areas will cause alleles to differ. We're 99% the same, but that 1% is hugely important.
In case of bottleneck effect many unique combination of traits might just get wiped out because many many individuals were killed [as in this elephant seal example] thus it is essential to understand the concept of allele which is one of gene pair found on the homologous pair of chromosomes because pair of alleles carry the unique traits in individuals [refer Tt, or Rr in Mendel's experiment], all those killed individuals had unique alleles which were just wiped out from the population...
salam..i like ur videos..i never was interested in this subject but u made it easy for me..n now regularly m taking ur lectures.. thanks alot.. stay blessed
You are amazing, very clear and precise . Moreover that you expain all your lessons in English is super scientific. Thanks so much. You have no idea how valuable I have found your work. Good job!!!
Sir i have I doubt Can we say that at the time of minimum population, natural selection occurs simultaneously with genetic drift because at that time the organism selects the best environmental conditions. Please clear my doubt
Sir you a example of genetic drift, in this you suppose the p . 5 and q. 5 after the time period p becomes 1 then if p+q=1 , then if we calculate the p and q in population it's also become equal to 1 , then why should not follow the Hardy Weinberg law
no..its OK friend the way u explain is awesome...u make things easier bcz of ur video I got to new biological concepts deeply...n if possible make video on pathogenic diseases also bcz lot more like me need it😇
Dr shomu's thanks allot for your help......aniway can u please explain me meiotic drive and migration pressure....... thanking you in anticipation. ......
I have a question: at minute 10:00 you say that now we have much more features in the population compared to the population we saw earlier. Why is that so?
Even after 5 years, this is still gold!❤️
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Yes..❤️
✋
Sir very very thank you!! what an amazing explanation I´ve seen! Im from Mexico and no one in my school could explain this better than you did! congratulations!
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In bottle neck we lose gene pool
Eg if initially we have 100 tigers & due to some human interference or Natural disaster 90 tigers die & we r left with 10.
Now if we will breed the left 10 tigers & then make them back 100
What we lose here is Gene pool as the 90 tigers we lost may have certain Genes which may have some benefits like fighting a particular disease but here we lost them.
Great sir.
yes definitely....
😎Oo
Exactly
you are right Wani Javid, bottleneck events lower genetic variation in the population. As the population size becomes smaller due to certain events like natural calamities, the changes in allele frequency becomes highly evident with majority of individuals in the population having either more recessive or dominant alleles. In short genetic variation is very less among the individuals in that particular population. Even when the population size increases in the future also the variation in the population remains low which is highly detrimental for survival. The same is true for founder effect, it decreases the genetic variation in the population. he rightly explained that part with example of people from Africa.
I watched already 20 videos of you. You are such a passionate teacher and your explanations are so rich and clear. Greetings from Spain!
Thank you for appreciating my efforts
wow! this is easily one of the best presentations on GD I've watched. thank you for taking the time to do this.
You are just awesome sir! Here am after 4 years of NEET exam and you're helping me in my degree course as well. Thank you!
Thank you so much for appreciating my efforts
thank you so much sir.. i am doing Ph.D in human genetics but the concept of genetic drift was not cleared til now.. i was always confused by bottleneck and founder effect.. you made it so easy nd logical.. thanks alot.. keep helping :)
+Monika Lochan thank you for watching the lecture. Glad it helped.
Very informative and helpful
phd hoke b unped
Amazing Way to Explain God bless You Sir You R My Fvrt Sir of Biology Since Class 12 Now am the Student Of 6 th semester 🎉Again Thank You For Such Easy Explanation
Thank you so much for appreciating my efforts. Stay tuned for more
Dada the Graf you showed is nowhere available.and nobody tolled what actually is this Genetic Drift. Thank you. You are a great Blessing to The People of India.
Thank you so much for appreciating my efforts
Thank you so much Sir! Its a blessing to have you on UA-cam!
You cleared concepts so easily and the last one why it is named drift was amazing you nailed it 🤩
You're welcome
Your accent is very very strong, making hard to focus at first for a foreigner like me ; but when the focus is put on what you say, the explanation is absolutely perfect ! Thank you !
Thank you so much for making this topic to understand easily and elaborately
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bhai bahut accha samjhaya bahut hi jyada accha ek like to banta hai mere se.... thank u soooo much bhai
You're welcome
Thank you sir, I couldn't understand it well before but you explained it the best 🙏
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Tq so much sir...I don't understand what is genetic drift until i found your vid❤❤
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Wow!!! Wow!!! Wow!!! India needs lecture like this 👍👍👍🔥🔥🔥🙏🙏🙏🙏
Thank you so much for appreciating my efforts
for the founder effect it is the classical example...The Afrikaner population of South Africa is mainly descended from one shipload of Dutch people ... The ship of 1652 contained a Dutch man carrying the gene for Huntington's disease,... very good reading
Allele and Alleles need clarification, and the classical example of bottleneck effect you mentioned is the population of Northern elephant seals....hunting reduced their numbers to 20 around the year 1890s
My favourite lecturer and thanks for amazing explanation ❤️❤️
Thank you so much for appreciating my efforts
Such an amazing explanation
Thankyou Sir
You're welcome
The allele clock does not beat metronomically. Multitudes of factors influence genetic "drift". Keeping it simple, access to water, exposure to variable weather effects plants' growth rates and cycles. As does mineral composition of soil. And eating plants and animals in different areas will cause alleles to differ. We're 99% the same, but that 1% is hugely important.
In case of bottleneck effect many unique combination of traits might just get wiped out because many many individuals were killed [as in this elephant seal example] thus it is essential to understand the concept of allele which is one of gene pair found on the homologous pair of chromosomes because pair of alleles carry the unique traits in individuals [refer Tt, or Rr in Mendel's experiment], all those killed individuals had unique alleles which were just wiped out from the population...
No words to explain my gratitude towards you sir
Thank you
8 years later and you're still replying the comments wow
Yes i try to do my best
How can u be this much perfect bro??U r juzz amazing!!Keep posting..
Glad to hear that you are getting benefit from the videos
after 1 year onces agai i am watching you i hope i will be do better after listening you. thanks
You are really very good teacher sir
Thank you so much for appreciating my efforts in
THANKS A LOT SIR!! YOU CLEARED ALL MY DOUBTS FROM GENETIC DRIFT!!!
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Happy Teachers day sir Your a very great teacher in entire state 🙏
Thank you so much for appreciating my efforts
Fabulous,fantastic lecture sir
Thank you so much for appreciating my efforts
very good and lucid explanation ..from a medical professional
salam..i like ur videos..i never was interested in this subject but u made it easy for me..n now regularly m taking ur lectures.. thanks alot.. stay blessed
You are amazing, very clear and precise . Moreover that you expain all your lessons in English is super scientific. Thanks so much. You have no idea how valuable I have found your work. Good job!!!
And the idea is that we clearly understood the things ❤️ thank you 😌
Glad it helped
This chanel helping me a lot ❤️
Sir i have I doubt
Can we say that at the time of minimum population, natural selection occurs simultaneously with genetic drift because at that time the organism selects the best environmental conditions.
Please clear my doubt
Great explanation sir
Osadharon dada ...chalie jao ...
Thank you
The explanation is simply awesome ...it was beneficial for me...A big thanks sir😊
Glad you liked my lectures
Any one can share lecturer regarding wahlund principle
Excellent explanation👍.some parts of genetics mentioned in UPSC anthropology syllabus...plz make some videos on that...
You are an excellent teacher 👍
Thank you. Glad you liked my lectures
Hi Shomu, I appreciate your way of teaching..
Can you please make a lecture on Inbreeding and how does it impact the generations
+Anurag Pundir thank you. I will try to make a lecture on that as well.
@@shomusbiologyofficial sir.. inbreeding a ekta class plzzz.
I really like the way you explain things...thank you sir.. Can you help to to reach your class about inbreeding depression and problems
amazing explanation, sir. i had great confusion about genetic drift, but after watching this video, i understand properly. thank u very much..
Thank you sir. I really appreciate it,. 👏👏👏
You're welcome
You are genius ! nice teaching
Thank you so much for appreciating my efforts
This guy is very helpful. I also need toxicology lectures
Thanks
Great explanations. Thank you!
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Thank you so much!!!!! You're very good
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superb.. thanks sir..
You're welcome
What an explanation thank u
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It really helped me a lot❤️❤️❤️❤️...🙏🙏🙏🙏Guru jiiii
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Very useful and meaningful video. I am a big fan of your channel and you.
Very nicely presented. Thank you
You're welcome
Thanks sir I'm helpe me your explaintion
You're welcome
Amazing explanation sir
It really helped me
Thank you so much for your videos sir
And sir please make some videos on plant taxonomy 😊
Sure. Thank you.
@@shomusbiologyofficial welcome sir
Beautifully explained💎
Sir this video was so helpful. Thank you so much. ☺
You're welcome
you made it so simple!thank you.
Thank you sir for tha relevant information.actually I dont know about genetic drift.your video very helpful for us.thank you so much sirr
Thank you sir 😇🙏🏻
You're welcome
Sir you a example of genetic drift, in this you suppose the p . 5 and q. 5 after the time period p becomes 1 then if p+q=1 , then if we calculate the p and q in population it's also become equal to 1 , then why should not follow the Hardy Weinberg law
Oh god, such a difficult concept was explained so well 🙌. A big thank you sir 🤩
Very nicely explained. Thank you 👍
You're welcome
great video
Thank you
Outstanding👍
Thank you
Sir thank you so much.
You're welcome
Tkanks you Sir .
Is very clear .
Thank you so much for appreciating my efforts
Very very helpful. Thank u
You're welcome
no..its OK friend the way u explain is awesome...u make things easier bcz of ur video I got to new biological concepts deeply...n if possible make video on pathogenic diseases also bcz lot more like me need it😇
Thnx a lot Shomu ji
Thank you sir it is very useful video for all who are studying zoology subject
You're welcome
Impressive explanation!
Absolutely amazing sir.. 🤗
nice explanation
Thank you
Really a great one ....!
Very useful
Thank you
Thanks sir
You're welcome
Sir can u reply me a question:-
Is antibiotic resistance in a bacteria by chance an example of genetic drift????
Thanks bhaiya 🤗😇
You're welcome
would you please make a class on genetic polymorphism and it's three basic avenues.
You cleared my doubts 😊
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Excellent video👍👍
You're welcome
Simply awesome Sir
and dat final graph made d idea a precise one...
Clear all my doubt thank you sir
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Superb
Thank you
Simply super sir
You explained genetic drift with 2 different allele frequency, how does the same applies for seal population? Can it happen for 3 or 4 alleles?
which materials to follow for evolution?
sir its really amazing..i understood it vv well.thankyou..
thnku sooo much sir ur all d videos r soo helpful
keep it up ..n god bless u
thnks to shomu's biology
Thanks a ton sir
You're welcome.
your amazing no words to explain your teaching sir
Dr shomu's thanks allot for your help......aniway can u please explain me meiotic drive and migration pressure....... thanking you in anticipation. ......
I have a question: at minute 10:00 you say that now we have much more features in the population compared to the population we saw earlier. Why is that so?
best explain
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Your words are not with you.your expressions expressing this topic more good than your words.👌👍👍
Thank you. Glad you liked my lectures
great video..............................
Thank you sir...very helpful
You're welcome
Tq sir ,teaching os amazing
Thank you. Glad you liked my lectures
I want the video of this tutor about isolation mechanism