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11, Ifa cell starts meiosis with 46 duplicated chromosomes (in the 'X" shape, having 2 sister chromatids), how many chromosomes does it have after meiosis...

Question

11, Ifa cell starts meiosis with 46 duplicated chromosomes (in the 'X" shape, having 2 sister chromatids), how many chromosomes does it have after meiosis I? How about after meiosis II?

11, Ifa cell starts meiosis with 46 duplicated chromosomes (in the 'X" shape, having 2 sister chromatids), how many chromosomes does it have after meiosis I? How about after meiosis II?



Answers

A cell in prophase II of meiosis contains 12 chromosomes. How many chromosomes would be present in a cell from the same organism if it were in prophase of mitosis? Prophase I of meiosis?

This question asked. If a cell has 12 chromosomes at the beginning of my Oh sis, how many chromosomes will have at the end of my oh sis? So if we are to think about my oh sis, we know that it occurs in two steps. There's my also is one in my house is, too, and we know that after the completion of my oh sis one, our cells have gone from being deployed to Hap Lloyd. So let's say this is going to be our initial self. And it has 12 chromosomes after it undergoes my oh sis one. We now have two daughter cells that are going to have six from zones each and then each daughter cell undergoes. Miles is, too, where those daughter cells will also have six from Zoe's each. So the answer here is going to be six were a because we have gone from being deployed at this point to being half Lloyd at this point

Okay. Hello. This question is about my Asus and human cell. So in humans, we know that the chromosome number to end equals 46. And we want to know how many chromosomes will be there during an a phase two. So let's talk a little bit about my Asus. First, let's just review what goes on in my Asus to help us answer this. So I am going to use, um just a organism where two n equals four. So we start off with to read and to blue chromosomes and then those each copy themselves. All right. During my Asus one thes air going to separate from each other to give us ahap Lloyd number of chromosomes. So one of each type of chromosome goes to each of the daughter cells during my hostess one. So we went from Tuen to each of these being one in Let's talk about my house is too he and so in my Asus two thes are going to line up belong the center during meta phase, That's it and spindle fibers air going to attach to them get our spindle fibers attaching and then during an a face to that is where they begin to separate. They start getting pulled to the opposite poles so the chromite IDs separate. So what we have is crocheted separate from the one chromosome chrome. It'd separate that one as they're being pulled. Two opposite ends of cell, but notice it's still a single cell. It has not divided into two separate cells yet. That will happen during Teela phase two. So as we look at this right now, come into chromosomes air. In each of these circles, there are four. So we are back to the to end number again. Temporarily. Of course, as soon as that cell wall pinches in yeah and forms to complete new cells, then the offspring will be one in. But for this brief moment in time, during an a phase two, these air back to be in to it. So during an a phase two, we're talking about humans whose to end number is 46 we're back to to end during Anna Phase two. That means the correct answer. You see 46 chromosomes. Okay, thanks so much for watching

Uh, a duplicated chromosome has How many crow motives? The correct answer is to a duplicated chromosome. Has one central mirror loops at the bedroom. It looks something like this and another one like this. So the central mirror is located right over here. However, each of these is a sister committed. We've got one, and we've got to. So we have to promote IDs and one chromosome and one central mirror forming one duplicated chromosome. Thank you for watching. And I hope this helped.

Problem 11 After pronouncing patrons of chromosome inheritance. So in this question, if a parent cell has 22 chromosomes state, daughter cell following my sister will have so at the beginning of no my nemesis seldom reason the parents sell have deployed to a number of chromosomes and occur in pairs. They set off chromosome that carry same genes and traits are cut homa logos, chromosome 20 members of these were separate. Each daughter nucleus receive a set of chromosomes here, so therefore each daughter cell will have deployed and number of chromosomes at the end of the cell division. So if parents will have 22 chromosomes, the daughter cell in my Asus two will have 11 chromosomes. So hence the correct answer is 11 chromosomes, which is option. See So if a parent cell has 22 chromosomes, the total cell following my assist two will have 11 chromosomes.


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