Which of the following cells during gametogenesis is normally diploid?

Fertilization takes place at …………

In mammals, failure of testes to descend into scrotum is known as ………

Polar body is produced during the formation of ……………

Menstrual flow occurs due to lack of …………

Approximately how many eggs are produced by a normal healthy human female up to the age of 25 years if the age of menarche is 12 years?

In humans, at the end of the first meiotic division, the male germ cells differentiate into the ………

The part that carries sperms from testis to epididymis is …………

Which period of menstrual cycle is called risky period of conception?

Which hormone confirms pregnancy?