In Prophase

Question

In prophase
A) cytokinesis occurs.
B) DNA is synthesized.
C) the chromosomes replicate.
D) the chromosomes condense, shorten, and thicken.
E) the spindle fibers disappear.

Accepted Answer

In prophase, the chromosomes condense and become visible under a microscope. They also shorten and thicken, preparing for cell division. Cytokinesis occurs in the later stages of mitosis. DNA synthesis occurs during the S phase of interphase. Spindle fibers are formed during prophase and are necessary for proper cell division, so they do not disappear. Therefore, the best choice is D.