Question

Vitrllogenesis occur during the formation of

A)oogonial cell in graffian follicle

B. Ootid in fallopian tube

C. Sec oocyte in fallopian tube

D. Primary oocyte in graffian follicle.

Answer 1

Option D is correct

Vitellogenesis (also known as yolk deposition) is the process of yolk formation via nutrients being deposited in the oocyte, or female germ cell involved in reproduction of lecithotrophic organisms. During growth phase of oogenesis, an egg nest forms ovarian follicle (Graafian follicle) one central oogonium grows and functions as primary oocyte. The others form the covering follicular cells. The later provide nourishment to primary oocyte. Yolk is deposited in this state. This phenomenon is called vitellogenesis.