sadly my biology teacher does not teach even 25% of the quality you do, thank you for everything and continue to aid our education!
@erenyeager8080
3 жыл бұрын
Cause ur biology teacher is Ms Morris
@erenyeager8080
3 жыл бұрын
U suck
@erenyeager8080
3 жыл бұрын
Orange orange yellow orange orange blue yellow orange orange yellow orange blue yellow orange orange yellow orange blue yellow orange orange yellow orange blue yellow orange orange yellow orange blue yellow orange orange yellow orange blue yellow orange orange yellow orange blue yellow
@SanKosar2005
Жыл бұрын
Sir, you have saved me from hours of studying. Thank you so much, very well explained
@leahokumura9072
4 жыл бұрын
This video contains a mistake-- the offspring indicated on the far left is not a recombinant genotype. The one on the far right is.
@EveseveE
Жыл бұрын
Holy crap you actually saved my IB career
@muskaanmehta9571
7 жыл бұрын
you should make a video on how to answer data base questions on ib exams!!
@Josh95595
10 жыл бұрын
What's going on in the background?
@fyrewillow1666
2 жыл бұрын
Thank you so much dude! I don’t do IB but this helped me so much for my bio exam :]
@marithbeen9743
4 жыл бұрын
Thank you!!! It finally makes sense
@alisonkershaw
6 жыл бұрын
I thought recombinant offspring had to contain at least one chromosome from a recombinant gamete. If that is correct then your first 2 offspring in the video are parental as they only contain parental gametes i.e. not resulting from crossing over.
@arthur5771
4 жыл бұрын
yes thats what i was thinking, only the third is recombinants right
@madivantonder2880
4 жыл бұрын
@@arthur5771The 3rd and the last one I think. Because for the last one you can get ab from the second parent, but to get ab from the first parent, crossing over had to take place. Is my thinkin gcorrect?
@Lovely-bh3ln
Жыл бұрын
@@madivantonder2880i agree
@napoleonmarrionbeduya2279
2 жыл бұрын
god ive been looking for this for ages thank for clarifying this to me!
@clairehigley9234
4 жыл бұрын
SO helpful! Thank you!
@msart9021
10 жыл бұрын
Thank you! Your videos are amazing. Do you have any videos on how to answer paper 2 section A data response?
@PeachPitz715
5 жыл бұрын
thank you. i could not understand genetic linkage for some reason.
@chengolzman5499
3 жыл бұрын
THANK YOU!! IT WAS SO CLEAR!!!
@eragon2121
8 жыл бұрын
Thanks for the video, but are you sure that those three are recombinant? The parental type has one chromosome that has aB and one that has Ab, so the recombinant gametes would be AB and ab. Cross that with the other parent which will always give ab and you have A/a, b/b and a/a, B/b as the two recombinant genotypes of the offspring.
@marciaskyers474
5 жыл бұрын
I see only 2 recombinants. Am I possibly wrong?!
@YourAverageHater
5 жыл бұрын
@@marciaskyers474 i agree, only the two to the left are recombinants
@Lovely-bh3ln
Жыл бұрын
@@YourAverageHateri think only the two on the right are recombinants
@yamnagirl6837
3 жыл бұрын
Thanks for your valuable video
@rithikamedari92
5 жыл бұрын
How can crossing over occur on the homologous pair itself to make the AB gamete?
@ikerbonilla3296
7 жыл бұрын
God Bless you 🙏🏽🙏🏽🙏🏽
@ee7692
3 жыл бұрын
Man clutched up for me got an end of year exam in 6 hours lmao
@tonivalerie
10 жыл бұрын
you are magical !!!
@misterleescience
10 жыл бұрын
:)
@Mellunaaa
8 жыл бұрын
Hi, sometimes there are similar questions but as a multiple choice in P1, do I have to go through all the steps as described in the video (takes quite a bit of time) or is there a quicker way to find the recombinants?
@misterleescience
8 жыл бұрын
+Mellunaaa Genetics questions take more time --- but they are logical and will take more time. It's worth it to go through the steps. If it's a linked genes question, always best to write it out. If not linked, then there are patterns and ratios to spot and know by heart. Good luck!
@husselkhatib
5 жыл бұрын
Legend, thanks for the video
@user-ew3ey9oo2g
Жыл бұрын
Wow
@prabalsharma9199
4 жыл бұрын
I am confused with the gametes of Male drosophila that are linked. Is there a video on this?
@damienkt02
10 жыл бұрын
you are awesome!!!! i dun have to read the lecture notes to understand now;)
@misterleescience
10 жыл бұрын
haha. you should still read the notes
@deechan623
6 жыл бұрын
Thank youu! ❤️
@SuitUpOrGoHome01
5 жыл бұрын
thank you so much
@hudasalameh9137
3 жыл бұрын
i thought recombinants are the new alleles found in the gametes not offspring
@juliejiraskova2160
5 жыл бұрын
I got even more confused than before, I think the video is not right. From your explanation, I understand that you're crossing over the alleles on the sister chromatids, not between the two homologous chromosomes. I am sorry I might be absolutely confused at this moment, but I feel like this is not right.
@apetersen219
8 жыл бұрын
Thanks for the explanation but that background noise is too much....wow
@vibhuvatsal4509
6 жыл бұрын
Only 1st 2 are recombinent
@maldelamy
6 жыл бұрын
lmaooo whats happening in the background
@ARTDEVGRU247
2 жыл бұрын
Sounds like someone getting murdered 😂😂😂😂🤦♂️
@kirasundberg9643
Жыл бұрын
whats happening kids
@Cristian-lo1pc
6 жыл бұрын
Was that a crossover between 2 sister chromatids?
@rcommeranitta
6 жыл бұрын
Cristian no of course. These are two homologous chromosomes, and each chromosome here is one chromatid. But in reality you do know that before meiosis occurs there has to replication of DNA (doubling of chromatids) during Interphase. Thus the homologous chromosome with alleles “Ab” is actually TWO sister chromatids, each chromatid has the same alleles Ab (identical copies). Crossing over occurs between the non sister chromatids of homologous chromosomes.
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