Question

The sister chromatids separate in what phase of mitosis?

Answer 1

Anaphase

Explanation:

Sister chromatids separate:--

1. During anaphase of mitosis.
2. During anaphase II of meiosis.

the duplicated chromosomes (with two sister chromatids attached at centromere) are lined up at the equatorial region of dividing cell and then microtubules attach at the centromeres to pull the chromatids apart toward opposite poles.

Here is a real time image of anaphase occuring in a plant cell