Crossing over of homologous chromosomes does not occur.Group of answer choicesmeiosis onlymitosis onlyneither mitosis nor meiosisboth mitosis and meiosis

Break Down the Problem

1. Identify where crossing over occurs: Meiosis vs. Mitosis.
2. Analyze the role of homologous chromosomes in these processes.

Relevant Concepts

1. Meiosis: A type of cell division that results in four genetically different gametes, involving two rounds of division and crossing over during Prophase I.
2. Mitosis: A type of cell division that results in two genetically identical daughter cells, where crossing over does not occur.

Analysis and Detail

1. Crossing Over in Meiosis:

   • Occurs during Prophase I when homologous chromosomes exchange segments, allowing for genetic variation.

2. Crossing Over in Mitosis:

   • No crossing over occurs as mitosis is focused on producing identical cells.

Verify and Summarize

• Since crossing over occurs only during meiosis, the option that states crossing over of homologous chromosomes does not occur is mitosis only.

Final Answer

Crossing over of homologous chromosomes does not occur during mitosis only.