Meiosis

Front

What is meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the production of four genetically diverse gametes (sperm or eggs).

Front

What are the two main stages of meiosis?

Back

The two main stages of meiosis are Meiosis I and Meiosis II.

Front

What occurs during Prophase I of meiosis?

Back

During Prophase I, homologous chromosomes pair up and exchange genetic material through a process called crossing-over.

Front

What is crossing-over and why is it important?

Back

Crossing-over is the exchange of genetic material between homologous chromosomes during Prophase I, which increases genetic diversity in the offspring.

Front

What happens during Metaphase I?

Back

During Metaphase I, homologous chromosome pairs align at the cell's equatorial plane.

Front

What is the outcome of Anaphase I?

Back

In Anaphase I, homologous chromosomes are pulled apart to opposite poles of the cell.

Front

What is the difference between Meiosis I and Meiosis II?

Back

Meiosis I separates homologous chromosomes, while Meiosis II separates sister chromatids.

Front

What occurs during Telophase I?

Back

During Telophase I, the cell divides into two daughter cells, each with half the number of chromosomes.

Front

What is the result of Meiosis II?

Back

Meiosis II results in four haploid daughter cells, each with a unique combination of genes.

Front

What is the significance of genetic variation in meiosis?

Back

Genetic variation is crucial for evolution and adaptation, as it provides a diverse gene pool for natural selection.