THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Polar bodies typically form by asymmetric cytokinesis: cytosol and organelles are shunted into the secondary oocyte during meiosis I, and then into the egg in meiosis II [Fig. 1].

Detailed explanation-2: -The mammalian primary oocyte emits the first polar body before ovulation. The second polar body is extruded from the oocyte as a consequence of oocyte activation triggered by the fertilizing spermatozoon.

Detailed explanation-3: -Fertilization promotes the formation of mature ovum cells and a polar body, while the primary polar body splits and produces two polar bodies. As a result, the ensuing polar bodies in oogenesis are three.