Question

Release of oocytes from ovary is

• A. Gestation
• B. Ovulation
• C. Parturition
• D. Implantation

Answer 1

The correct option is B Ovulation

The process of release of egg is called as ovulation. During menstruation cycle in human females, the primary oocyte within the tertiary follicle grows in size and completes its first meiotic division. It is an unequal division resulting in the formation of a large haploid secondary oocyte and a tiny first polar body. The secondary oocyte retains the bulk of the nutrient rich cytoplasm of the primary oocyte. The tertiary follicle further changes into the mature follicle or Graafian follicle. The secondary oocyte forms a new membrane called as zona pellucida surrounding it. The Graafian follicle now ruptures to release the secondary oocyte (ovum) from the ovary by the process called as ovulation.