NEET BIOLOGY

Detailed explanation-1: -All sexually reproducing species have certain key life cycle features in common, such as meiosis (the production of haploid cells from diploid ones) and fertilization (the fusion of haploid gametes to form a diploid cell called the zygote).

Detailed explanation-2: -Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm). In humans, body (or somatic) cells are diploid, containing two sets of chromosomes (one from each parent).

Detailed explanation-3: -Only sexually reproductive organisms utilize meiosis. The role of the process is to produce sex cells and to repair genetic defects in germ line cells (the sex cells). Both sexual and asexual organisms go through the process of mitosis.

Detailed explanation-4: -Meiosis does not occur during asexual reproduction. Meiosis is the process of producing gametes (eggs and sperm). Mitosis, on the other hand, is simply the process of cell division.

Detailed explanation-5: -Meiosis occurs in all animals and plants. The end result, the production of gametes with half the number of chromosomes as the parent cell, is the same, but the detailed process is different. In animals, meiosis produces gametes directly.