Question

Mitosis and meiosis are different processes, but have some basic similarities. Which of the following describes an event that would take place in the process of meiosis, but not mitosis?

A.) Condensed chromosomes line up in the center of the nucleus in metaphase.

B.) The cytoplasm is divided between two cells through cytokinesis.

C.)There would be only one cell division resulting in two new cells.

D.) Chromosomes cross over and swap gene sequences.

Answer 1

Chromosomes crossover in swap gene sequences

Answer 2

The answer is D. Chromosomes cross over and swap gene sequences.

This event occurs during meiosis, but not mitosis. During meiosis, homologous chromosomes pair up and exchange segments of genetic material in a process called crossing over. This results in new combinations of genes on the chromosomes, increasing genetic diversity. In contrast, mitosis does not involve the pairing of homologous chromosomes, and there is no crossing over.