Which among the following has 23 chromosomes?

Options

A. Spermatogonia
B. Zygote
C. Secondary oocyte
D. Oogonia

Answer

C

Explanation

Secondary oocyte (n = 23). Primary oocyte completes first meiotic division to form secondary oocyte (23 chromosomes) and polar body (23 chromosomes), whereas spermatogonia, zygote and oogonia have 46 chromosomes, hence diploid.