Question

In an organism with a diploid number of 2n=8, how many individual chromatids will align on the metaphase plate during: (a) mitosis, (b) meiosis I, and (c) meiosis II. Indicate how and whether sister chromatids are paired up with each other.

Answer 1

During mitosis, the number of individual chromatids that will align during metaphase is 4 and the sister chromatids are not paired up each other.
During meisos I, the number of individual chromatids that will align are 4 and during meisos II, also 4. The sister chromatids will pair up with each other during meisos I and II.