Gene Linkage, Crossing Over, & Mapping

Genes may crossover before segregating. The frequency of crossover gives rise to mapping genes on chromosomes. THe larger the mapping distance, the more likely they are to crossover.

[@lollypoppalace]

well ... I don't know what I just saw and im still don't know how to find the map distance

[@SarahOnuora-pt9om]

Same here

[@tartanhandbag]

im only here for the music

[@Biomations]

@JejeBabe Think about being at the ends of the chromosomes. On that second cross, you are a bit closer to the centromere. So, if you cross at that location, not only do the two genes I placed on the DNA cross, but all others that I didn't place as well. You see?

[@brendagrewe6291]

Will modeling of meiosis with clay is a great idea, the video forgot a critical aspect of meiosis. It occurs when the chromosomes are in the replicated state (4-strand stage).

[@donsensei8721]

What an amazing video mamn, I completely understood it. I was so confused about it, but now all my doubts are clear. By the way, you need to have a solid understanding of the basics to get this video :)

[@puggie3261]

Thank you!!

[@Crackerjacker982]

nice music... still dont understand LD though

[@eatandrepeatt]

It's very helpful thank you, but can u plz tell me that in double cross over why the middle genes do not exchange when we draw them in gene mapping ?

[@sanjuktalaha3439]

Cause the middle genes are present near centromere of chromosome so crossing over is less as compared to the genes at telomere or at free ends of chromosome

[@Oncolytic]

I couldn't understand

[@sajelculture8047]

WHAT THE FUCK WAS THAT

[@rosekingham8025]

I don't get it....the distance between the colors makes how often crossing over vary?

[@kaushikr1711]

Thanks! (: helped a lot...

[@Biomations]

@JejeBabe When it is a single cross, everything goes with it. You need at least two crosses to have isolated genes cross over.

[@JejeBabe]

it doesnt make sense why did u cross two genes on the second cross over?

[@greent26tube]

Why is it 3 percent chance on the double crossover? What is the math?

[@SarahOnuora-pt9om]

Honestly

[@loesvandendungen5101]

i love the funk

[@naomikureayuba504]

This is great 😗😗😗

[@steras6978]

Sick beat NIGGA

[@pinkprincess5688]

Go watch blood sweat and tears

[@anki7]

Army spotted. Here also😂

[@taebu-in1603]

😍😍🤗

[@reenagurjar7742]

🤩

[@munyalmedia]

@biomations could you please explain the relationship between chromosomal crossover and alleles. thank you. Does chromosomal crossover produce chromosomes that are alleles of each other?

[@lovemilfa]

What happened if there is only one gene on 1 chromosome?Will the crossover happen?I mean like two 2 gene A and a,if the crossover happen then how can we???

[@hariharanp3455]

In case of diploid organisms , say mother has Aa genes for some function on X-chromosome and father has aa gene on X-chromosome both the genes will segregate during chromosomal segregation during meiosis and if one of X-chromosome have linked gene those genes in chromosome will not undergo recombination (Here genes that codes for some characters are there on x-chromosomes according to TH Morgan) there are multiple genes on one chromosomes

[@rockyfei521]

I have the same question. 23% 67% 7% 3%

[@SarahOnuora-pt9om]

As in

[@kiratsahota4100]

I didn't get that how to find map unit

[@sajithachooladath8714]

I couldn't figure it out

[@humerahera7804]

dint understand

[@malakmajeed1785]

What the fuck...😈

[@vipashasomkar8458]

wtf... kch smjh naie aaya

[@kavikumar9101]

Hardly understood wat he/she is trying to tell........ God.......wat an horrible video

[@AshishKumar-gy9wn]

Bakwas

[@gloriajames6975]

Very bad