The phase where sister chromatids separate.Group of answer choicesboth mitosis and meiosis Imeiosis IImeiosis Imitosisboth mitosis and meiosis 11

The phase where sister chromatids separate occurs in both Mitosis and Meiosis II.

Here's a step-by-step explanation:

1. Mitosis: This is a process of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus. During the Anaphase of Mitosis, the sister chromatids separate.

2. Meiosis: This is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. The process involves two divisions, Meiosis I and Meiosis II. During Anaphase II of Meiosis II, the sister chromatids separate.

So, the correct answer is "both mitosis and meiosis II".