Question

Meiosis involves:
A. One division of the nucleus and one division of the chromosome.
B. Two divisions of the nucleus and one division of the chromosome.
C. One division of the nucleus and two divisions of the chromosome.
D. Two divisions of the nucleus and two divisions of chromosomes.

Answer 1

Hint: Meiosis is a form of cell division that occurs in sexually reproducing animals' germ cells and is utilised to create gametes such as sperm and egg cells. It takes two rounds of division to produce four cells, each with only one copy of each chromosome.

Complete answer:
Meiosis is a kind of cell division that creates four gamete cells by halving the number of chromosomes in the parent cell. For sexual reproduction, this procedure is necessary to generate egg and sperm cells. When sperm and egg combine to create a single cell during reproduction, the number of chromosomes in the child is restored.
Meiosis begins with a diploid parent cell, which has two copies of each chromosome. One round of DNA replication occurs in the parent cell, followed by two nuclear division cycles. The procedure produces four haploid daughter cells, each of which has half the number of chromosomes as the diploid parent cell.
Meiosis is related to, but distinct from, mitosis, a cell division process in which a parent cell divides into two identical daughter cells. Following one cycle of DNA replication in cells of the male or female sex organs, meiosis occurs. Meiosis I and meiosis II are the two divisions of the process, and each include numerous stages.
Meiosis is a kind of cell division utilised to produce gametes, such as sperm or egg cells, in sexually reproducing organisms. It entails two divisions, yielding four cells with just one copy of each paternal and maternal chromosome.

So, option B is correct.

Note: Meiosis is crucial because it guarantees that all creatures generated through sexual reproduction have the appropriate amount of chromosomes. Recombination occurs during meiosis, which results in genetic diversity.