NEET BIOLOGY

Detailed explanation-1: -Meiosis is the type of cell division used to produce gametes (sperm and eggs). Meiosis assures that genetic diversity is achieved during sexual reproduction. Meiosis consists of 2 cell divisions: Meiosis I and Meiosis II. Meiosis starts with a diploid (2n) parent cell that divides to make 4 haploid (n) cells.

Detailed explanation-2: -One of the key differences in mitosis is a single cell divides into two cells that are replicas of each other and have the same number of chromosomes. This type of cell division is good for basic growth, repair, and maintenance. In meiosis a cell divides into four cells that have half the number of chromosomes.

Detailed explanation-3: -The phases of meiosis I. Prophase I: The starting cell is diploid, 2n = 4. Homologous chromosomes pair up and exchange fragments in the process of crossing over. Metaphase I: Homologue pairs line up at the metaphase plate.

Detailed explanation-4: -Meiosis begins with a diploid cell and ends with four haploid cells. These cells eventually differentiate into mature sperm or egg cells. During meiosis, homologous chromosomes separate, and haploid cells form that have only one chromosome from each pair.

Detailed explanation-5: -Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.