Meiosis

Front

What is the primary purpose of meiosis?

Back

The primary purpose of meiosis is to produce gametes (sperm and egg cells) for sexual reproduction, reducing the chromosome number by half and increasing genetic diversity.

Front

How many rounds of division occur in meiosis?

Back

Meiosis consists of two rounds of division: meiosis I and meiosis II.

Front

What is the chromosome number in human gametes after meiosis?

Back

Human gametes contain 23 chromosomes after meiosis.

Front

What is crossing over and why is it important in meiosis?

Back

Crossing over is the exchange of genetic material between homologous chromosomes during meiosis, which increases genetic diversity in the resulting gametes.

Front

What is the difference between mitosis and meiosis in terms of the number of daughter cells produced?

Back

Mitosis produces two identical daughter cells, while meiosis produces four genetically diverse daughter cells.

Front

What type of cells undergo meiosis?

Back

Germ cells (sperm and egg precursor cells) undergo meiosis.

Front

What is the significance of genetic diversity in sexual reproduction?

Back

Genetic diversity increases the chances of survival and adaptation of a species to changing environments.

Front

What is the term for the process of forming gametes?

Back

The process of forming gametes is called gametogenesis.

Front

What happens during prophase I of meiosis?

Back

During prophase I, homologous chromosomes pair up and exchange segments through crossing over.

Front

What is independent assortment and when does it occur?

Back

Independent assortment is the random distribution of maternal and paternal chromosomes into gametes, occurring during metaphase I of meiosis.