Question

multiple choice question
which statement about mitosis is true?

mitosis occurs only in body cells.
in mitosis, two sets of divisions occur.
mitosis is involved in the production of gametes.
in mitosis, daughter cells are not genetically identical due to crossing over.

Explanation:

1. Analyze "Mitosis occurs only in body cells": Mitosis is the process of cell division for growth, repair, and asexual reproduction in somatic (body) cells. Gametes are produced via meiosis, so this statement is correct.
2. Analyze "In mitosis, two sets of divisions occur": Mitosis has one set of division (prophase, metaphase, anaphase, telophase), while meiosis has two. So this is incorrect.
3. Analyze "Mitosis is involved in the production of gametes": Gametes are produced by meiosis, not mitosis. So this is incorrect.
4. Analyze "In mitosis, daughter cells are not genetically identical due to crossing over": Crossing over occurs in meiosis, not mitosis. Mitosis produces genetically identical daughter cells. So this is incorrect.

Answer:

A. Mitosis occurs only in body cells