The Chromosomes Line Up in the Middle of the Cell

Question

The chromosomes line up in the middle of the cell during
A) prophase.
B) anaphase.
C) metaphase.
D) telophase.
E) prophase II.

Accepted Answer

Chromosomes line up in the middle of the cell during metaphase. This is when the spindle fibers attach to the centromeres of the chromosomes and align them at the equator of the cell. During prophase, the chromosomes condense and the spindle fibers begin to form. During anaphase, the spindle fibers pull the sister chromatids apart towards opposite poles of the cell. Telophase is when the chromosomes have reached their respective poles and begin to decondense. Prophase II is a stage in meiosis and is similar to prophase in mitosis.