You ,Sir,deserve a medal of honor for providing quality content in diverse biological fields for students all over the world ,I'm subscribed since 2015 and you never fail to help me,Thank you is just not enough,the only thing I could do for you is invite you for a diner ,if by any chance you come to Paris just tell me please.
excellent. Before we start talking about map units, I have to know what the combinations are before recombination. This is how this all makes sense to me.
Page 326 H zone = The region of a striated muscle fibre that contains only thick (*myosin) filaments. The H zone appears as a lighter band in the middle of the dark *A band at the centre of a *sarcomere.
Thanks a lot, the video was really useful, but i have a question in a homework problem is the following instruction: "If instead of the test cross (not shown here), two triple heterozygotes were crossed, what would be the proportion?", the tricky part of this problem is that male fruit fly doesnt have recombination, and that confuse me a lot, because, normally in this kind of problem is implied that the male is homocigous, which isn't the case in this problem. So basically my question is, how can i set this problem? thank you.
For the heterozygous GgNn doesn it produce 4 gametes GN, Gn, gN and gn? so in F2 generation you should have 500 GgNn, 500 Ggnn, 500 ggNn and 500 ggnn? genotypic ratio of 1;1;1;1? or am i wrong?
Had the same question at first but i think the assumption is that you know the placement G and n are across the same DNA single strand from the mother, and the g and N from the father. And so technically, without cross overs, the resulting gamete should only have those pairings. One knows simply because he/she is the one who genotyped the parents and did the cross.
You need to write a "/" between your genotypes to specify which alleles are on the same chromosome together. For example, part b should be written as "Gn / gN" because without that notation how do we know its not "GN / gn" when you tell us the genes are linked?
My book says here that you can only have this recombination frequency with a female. So if you use a male, then it would be 50%-50%, like normal. Is this correct? Can someone maybe explain to me why it is like that? Thank you :)
sorry but this video is not helpful as other videos! It is so confusing and contains much basic info that we should already KNOW since we're talking about genetic mapping as microbiology concept
I hated this video. Confusing. Like my textbook, there seems to be an obsession with explaining things in terms of historical experiments with fruit flies (and the commensurate confusing terminology for their phenotypes). Why not just draw out the chromosome, and explain it in terms of molecular biology?
You ,Sir,deserve a medal of honor for providing quality content in diverse biological fields for students all over the world ,I'm subscribed since 2015 and you never fail to help me,Thank you is just not enough,the only thing I could do for you is invite you for a diner ,if by any chance you come to Paris just tell me please.
excellent. Before we start talking about map units, I have to know what the combinations are before recombination. This is how this all makes sense to me.
You're a great teacher, thanks so much for these videos
This man descended from heaven. No cap.
You are flawless, thank you SO MUCH!!
You've just saved my life.
youre a fantastic teacher! thank you so much, it'
s hard to find informative videos on genetics but yours help so much
Thank youuuuuuu😭 literally saved my life tonight
You are my hero! Thank you so much!! You've saved me by Genetics exam :)
Thanks for great help sir .....Lots of
Love from your Indian student ❤️
Thankyou AK so much for helping me understand! As other people commented: fantastic simplification!💪🏾
Thank you! It was a great explanation and honestly such a lifesaver!!
Page 326
H zone = The region of a striated muscle fibre that contains only thick (*myosin) filaments. The H zone appears as a lighter band in the middle of the dark *A band at the centre of a *sarcomere.
Thanks a lot from india
unfortunately the final consequence of recombination mapping was interrupted and the video suddenly ended!
You taught really well 👍
🙏🙇
Why cant this man be my genetics professor
Thank you so much ❤️💕😊😊
Very helpful, thank you!
Jesus christ dude, you're a life saver.
Very helpful thank you so much
换笔换的好辛苦啊哈哈，very clear and helpful， thank you so much
thank you youre a great guy
Good explaination
You are a legend!
Thank you ak lacture
This was a great help sir, subbed :)
Thanks a lot, the video was really useful, but i have a question in a homework problem is the following instruction: "If instead of the test cross (not shown here), two triple heterozygotes were crossed, what would be the proportion?", the tricky part of this problem is that male fruit fly doesnt have recombination, and that confuse me a lot, because, normally in this kind of problem is implied that the male is homocigous, which isn't the case in this problem. So basically my question is, how can i set this problem? thank you.
very helpful,thanks dear.
Can we say the genetic map distance as , CentiMorgan unit?
For the heterozygous GgNn doesn it produce 4 gametes GN, Gn, gN and gn? so in F2 generation you should have 500 GgNn, 500 Ggnn, 500 ggNn and 500 ggnn? genotypic ratio of 1;1;1;1? or am i wrong?
Had the same question at first but i think the assumption is that you know the placement G and n are across the same DNA single strand from the mother, and the g and N from the father. And so technically, without cross overs, the resulting gamete should only have those pairings. One knows simply because he/she is the one who genotyped the parents and did the cross.
is 1 map unit = 1 centiMorgan? bacause our teacher said 1cM = 1 recombination percentage
Kiwi VdS centimorgan is map unit
All of them are equal 1 map unit = 1 centimorgan = 1 recombination percentage
You need to write a "/" between your genotypes to specify which alleles are on the same chromosome together. For example, part b should be written as "Gn / gN" because without that notation how do we know its not "GN / gn" when you tell us the genes are linked?
Sir the voice is low.
Lecture is awsome
Hey what would happen if you assumed the genes weren't linked?
Oh gosh this was ages ago, I passed that exam. BUT THANK YOU!
Good luck !Wembly Ames
Plz i need 2nd part of this video.. it ends in the middle of explanation.. can anyone plz tell me where is remaining video.. plz i need that.. thanks
Legend!
many thanks !
Thank you soo much sir
My book says here that you can only have this recombination frequency with a female. So if you use a male, then it would be 50%-50%, like normal. Is this correct? Can someone maybe explain to me why it is like that? Thank you :)
females have a higher recombination rate than males ( 70% vs 50%)
Sir can you explain combining map segments ?...?...plzzz sir my exam zzz so near
nice video!!
Why can the frequency of the recombination between linked genes not exceed 50%
isn't the recombination frequency 20%
200/1000?
Its 200/2000, so 10%
please come to my uni n teach!!!
bro fix your audio, great explanation tho
your volume is too low
Great job ^_^
sorry but this video is not helpful as other videos! It is so confusing and contains much basic info that we should already KNOW since we're talking about genetic mapping as microbiology concept
👏
drink everytime he says basically means
You'll get drunk in under a minute :-)
Ur constant marker capping is throwing off the timing. Pls just leave the caps off im certain the ink will not dry out in a continuous 16min vid.
As a matter of fact ur 16min vid could have been shortened to about 12-14min if u lose the caps entirely
Be nice
It is crazy how much work this guy puts in to help us learn and the only thing that Donicio can comment on is capping the markers.
Actually if you fasten the video up to 2X, you save a lot of time to live your shitty life:D
Your ungrateful ass should learn to be patient.
I hated this video. Confusing. Like my textbook, there seems to be an obsession with explaining things in terms of historical experiments with fruit flies (and the commensurate confusing terminology for their phenotypes). Why not just draw out the chromosome, and explain it in terms of molecular biology?
ur just dumb
Thank you!