AP BIOLOGY

Detailed explanation-1: -Meiosis is the process by which a single cell divides twice to produce four cells with half the original genetic information. Oogenesis: Oogenesis is the process by which female gametes are formed.

Detailed explanation-2: -“Oogenesis is the process of formation of female gametes.” Oogenesis is the type of gametogenesis through which ova, also called the female gametes are formed and the produced female gamete is known as an ovum.

Detailed explanation-3: -There are three phases to oogenesis; namely, multiplication phase, growth phase and maturation phase.

Detailed explanation-4: -Just before ovulation, the oocyte rapidly completes meiosis I, dividing in such a way that one cell becomes the secondary oocyte (an egg orovum), containing most of the cytoplasm with its organelles; the other cell becomes the first polar body (seeFig. 2-17).