Question

question 1 1 pts during metaphase, __________. chromosomes line up in the middle of the cell the nuclear envelope breaks up centromeres divide sister chromatids separate

Explanation:

In the metaphase stage of cell - division (mitosis or meiosis), chromosomes align at the equatorial plane (middle) of the cell. The nuclear envelope breaks up in prophase, centromeres divide and sister chromatids separate in anaphase.

Answer:

chromosomes line up in the middle of the cell