Meiosis

Meiosis is a crucial process for genetic diversity, involving two divisions: meiosis 1 and meiosis 2. Meiosis 1, the reduction division, separates homologous chromosomes, while meiosis 2 separates sister chromatids, resulting in four haploid cells. The stages of meiosis include prophase, metaphase, anaphase, telophase, and cytokinesis, each contributing to the genetic variation through processes like crossing over. This tutorial explains each stage and highlights meiosis's role in reproduction.

What is the primary role of meiosis in organisms?

• To increase the size of cells

• To generate genetic diversity

• To produce genetically identical cells

• To repair damaged cells

During which stage of meiosis I do homologous chromosomes pair up and exchange genetic material?

• Anaphase I

• Telophase I

• Prophase I

• Metaphase I

What is the result of anaphase I in meiosis?

• Chromosomes line up at the equator

• Homologous chromosomes separate

• Cytokinesis begins

• Sister chromatids separate

In meiosis II, what happens during metaphase II?

• Chromosomes condense

• Homologous chromosomes pair up

• Chromosomes line up at the equator

• Sister chromatids separate

How many haploid cells are produced at the end of meiosis?

• Eight

• Six

• Four

• Two