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 haploid cells from one diploid cell. It is essential for sexual reproduction.

Front

How many total steps are there in the process of meiosis?

Back

There are 8 total steps in meiosis, divided into two rounds: meiosis I and meiosis II.

Front

What are somatic cells?

Back

Somatic cells are any body cells that are not gametes (sex cells). They contain the full set of chromosomes (diploid).

Front

What is the difference between haploid and diploid cells?

Back

Haploid cells contain half the normal chromosome number (N), while diploid cells have the full set of chromosomes (2N).

Front

During which stage of meiosis does crossing over occur?

Back

Crossing over occurs during Prophase I of meiosis, where homologous chromosomes exchange genetic material.

Front

What is the significance of crossing over in meiosis?

Back

Crossing over increases genetic diversity by allowing the exchange of genetic material between homologous chromosomes.

Front

Define the term 'gamete'.

Back

A gamete is a haploid reproductive cell (sperm or egg) that fuses with another gamete during fertilization to form a diploid zygote.

Front

What is the role of meiosis in sexual reproduction?

Back

Meiosis produces gametes, which are necessary for sexual reproduction, ensuring genetic variation in offspring.

Front

What happens during Telophase I of meiosis?

Back

During Telophase I, the chromosomes reach the poles of the cell, and the cell divides into two haploid cells.

Front

What is the outcome of meiosis II?

Back

Meiosis II results in the separation of sister chromatids, producing a total of four haploid cells from the original diploid cell.