Question

Secondary oocyte is

• A. Haploid
• B. Diploid
• C. Polyploid
• D. None of the above.

Answer 1

The correct option is A Haploid

The process of formation of a mature female gamete is known as oogenesis. Oogenesis starts in embryonic life when a couple of million gamete mother cells (oogonia) are formed within the ovary. These cells start division and enter into prophase-I of the meiotic division. At this prophase-I stage, they are known as primary oocytes. The meiotic division isn't complete so primary oocyte is diploid, i.e it has 23 pairs of chromosomes. At puberty, primary oocyte completes the I ${}^{st}$ meiotic division to form the haploid secondary oocyte and a haploid polar body.

So, the correct answer is 'Haploid'.