Question

what happens in anaphase?
click ok! once you have selected the correct answer.
a. sister chromatids separate and move toward opposite poles.
b. chromosomes line up single file down the middle of the cell.
c. nuclei re - form.
d. the nucleus disintegrates.

Explanation:

In anaphase of cell division (mitosis or meiosis), sister chromatids separate at the centromere and are pulled by spindle fibers to opposite poles of the cell. Option B occurs in metaphase (chromosomes align at the equator), option C occurs in telophase (nuclei re - form), and option D occurs in prophase (nuclear envelope disintegrates).

Answer:

A. Sister chromatids separate and move toward opposite poles.