1. Describe the actions of the cell's chromosomes during metaphase, a stage of mitosis.
a. They condense to become chromatin.
b. They move toward the poles of the cell.
c. They duplicate.
d. They line up in the middle of the cell.

The correct answer is Option d. They line up in the middle of the cell.

Explanation:

Metaphase is a stage of mitosis in which condensation of DNA molecule into chromosomes occurs. During metaphase, nucleus is disappeared and chromosome becomes visible in the cytoplasm of the cell. There, the chromosomes line up in the middle of the cell.

b is the answer and if you need further with anything message me