Graafian follicle gets converted into . . . . . . after ovulation under the effect of . . . . . . .

Which structure of the ovary in mammals acts as an endocrine gland after ovulation?

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
$(a)$ It results in the formation of haploid gametes
$(b)$ Differentiation of gamete occurs after the completion of meiosis
$(c)$ Meiosis occurs continuously in a mitotically dividing stem cell population
$(d)$ It is controlled by the Luteinising hormone $(LH)$ and Follicle-Stimulating Hormone $(FSH)$ secreted by the anterior pituitary
$(e)$ It is initiated at puberty
Choose the most appropriate answer from the options given below:

Mammalian eggs have

Define spermiogenesis and spermiation.

The nourishing cells in the seminiferous tubules are