AP BIOLOGY

Detailed explanation-1: -Most of the cytoplasm is segregated into one daughter cell, which becomes the egg or ovum, while the smaller polar bodies only get a small amount of cytoplasm. They frequently die and disintegrate by apoptosis, but in some cases remain and can be important in the life cycle of the organism.

Detailed explanation-2: -Polar bodies are very small and haploid cells that can not undergo fertilization. All the cytoplasm is segregated into one daughter cell that becomes the egg or ovum. The other polar bodies with a small amount of cytoplasm will usually die and disintegrate by apoptosis.

Detailed explanation-3: -Polar bodies may, however, give rise to human embryoids if fertilized and twins may even result when one spermatozoa fertilizes the ovum and a second sperm fertilizes its sister polar body (Bieber et al., 1981).

Detailed explanation-4: -During oogenesis-at the end of meiosis and cytokinesis-an oogonium divides into one mature ovum capable of being fertilized and three polar bodies that are reabsorbed, while a spermatogonium divides into four viable spermatozoa capable of fertilization.