Question

Which statement compares what happens in metaphase and anaphase?

A.The spindle fibers bring the chromosomes together and then pull them apart.
B.The spindle fibers pull the chromosomes apart and then bring them together.
C.The chromosomes condense and then unravel.
D.The chromosomes unravel and then condense.

Answer 1

In metaphase, chromosomes are aligned in a plane while in anaphase, sister chromatids separate and the chromosomes are pulled towards opposite poles of the cell. Hence the correct answer is option A

Step-by-step explanation:

Anaphase is the phase of cell division where sister chromatids separate and the centromeres divide. In anaphase, the spindle fibers pull the chromosomes toward opposite poles of the cell. This pulling action is like reeling in a fish by shortening the fishing line. On the other hand, metaphase is the phase where all the chromosomes are aligned in a plane called the metaphase plate. The sister chromatids are still tightly attached to each other by cohesin proteins. The chromosomes are maximally condensed at this time.

Hence the correct answer is option A