Question

If there are 20 centromeres in a cell at anaphase, how many chromosomes are there in each daughter cell following cytokinesis?

Answer 1

How many do you think?

Answer 2

I know there are 10 but I need help in figuring out why.

Answer 3

Ok let me explain it to you ...

Answer 4

So meiosis. Do you understand what happens in anaphase?

Answer 5

it's when the sister chromatids pair up and the cell is starting to split apart. Each end has the same complete set of chromosomes

Answer 6

Yes, exactly, but here they are speaking about meiosis I. In meiosis I, there are homologous chromosomes that line up together first

Answer 7

So here we have 20 chromosomes, 10 from dad (blue) and 10 from mom (green). In the first step of meiosis, the cell splits apart the homologous chromosomes, not the chromatids...

Answer 8

So we get one set going to each side like this.... (see attachment)

Answer 9

So how many chromosomes does each daughter cell get here?

Answer 10

Ohh jeeze okay I understand now

Answer 11

Thank you so much I don't know why I was so stumped by that question

Answer 12

No prob. Glad I could help! :)