Question

what happens in anaphase? click ok! when youre done. sister chromatids double in number. sister chromatids split up and move to opposite sides of the cell. sister chromatids switch places with each other.

Explanation:

In anaphase of cell division (mitosis or meiosis II), the sister chromatids separate. The centromeres split, and the spindle fibers pull the sister chromatids (now individual chromosomes) to opposite poles of the cell. This is a key step in ensuring each new cell gets the correct genetic material. The first option is incorrect as sister chromatids do not double in number in anaphase (they were replicated in S - phase). The third option is incorrect as sister chromatids do not switch places; they move to opposite sides.

Answer:

Sister chromatids split up and move to opposite sides of the cell.