NEET BIOLOGY

Detailed explanation-1: -Mitosis is necessary for cell growth, repair, and regeneration. Dead cells are replaced by mitosis since the number of chromosomes is not changed in a cell after division in mitosis.

Detailed explanation-2: -Explanation: Crossing over is the only answer choice that does not occur during mitosis. Crossing over occurs during prophase I of meiosis and involves swapping of genetic information between homologous chromosomes.

Detailed explanation-3: -The stages that occur during mitosis are prophase, prometaphase, metaphase, anaphase, and telophase. Let us analyze the options to find out the correct option. Option A: Mitosis occurs in the somatic cells which comprises all the cells of the body except the germ cells which form the gametes which is egg and sperm.

Detailed explanation-4: -Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.