Question

Read the following and answer from given below:

Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.

Which cell division is involved in the formation of secondary oocytes?

Options

• Mitosis

• Meiosis I

• Amitosis

• Meiosis II

Answer 1

Meiosis I

Explanation:

FSH stimulates the growth of Graafian follicles, development of egg oocytes within the follicles to complete the meiosis I to form secondary oocytes. It also stimulates the formation of estrogen.