Question

27. Oogenesis is:

a) formation of an egg cell.
b) fertilization of an egg cell.
c) rupture of an egg cell.
d) implantation of a fertilized egg cell.

Answer 1

(a) formation of an egg cell.

Oogenesis is the process by which female gametes (ova or egg cells) are formed. It involves the development and maturation of an immature ovum into a mature egg cell capable of being fertilized by a sperm cell.

Answer 2

Oogenesis is the process of producing eggs in the ovaries of a female fetus. It involves the division of a diploid oogonium to form a diploid primary oocyte, which then undergoes meiosis to become an egg cell if fertilized. Correct option is a)

Step-by-step explanation:

Oogenesis is the process of producing eggs in the ovaries of a female fetus. It begins with a diploid oogonium that divides by mitosis to form a diploid primary oocyte. The primary oocyte then undergoes meiosis I and remains in an immature ovarian follicle until after birth. Finally, if fertilized, the secondary oocyte becomes an egg cell. Therefore, option a) "formation of an egg cell" is the correct answer.