Question

Why must DNA replication have to occur before a cell can divide by mitosis?

A. to cause one of the cells produced to have double the number of chromosomes as the parent cell
B. to allow crossing over to occur in each of the cells produced
C. to maintain the same number of chromosomes in the daughter cells as in the parent cell
D. to cause all of the cells produced to have half the number of chromosomes as the parent cell

Answer 1

C

Step-by-step explanation:

DNA replicates because the second set of DNA will move into the new cell during telophase. double-check in your text but C is the most accurate answer given. A doesn't happen unless there's a breakdown in cell division, and D is for meiosis when a diploid cell divides into a haploid cell. B could be correct but it's not entirely accurate.