Fertilization of ovum in mammals, takes place in

Which of the following is the actual genetic part of a sperm?

Sperms are stored in earthworm after fertilization in

The post-embryonic growth is

Binary fission occurs in

Semen consists of an enzyme called

The upper pigmented part of egg is concerned with

Female gamete develops into a new individual without being fertilized by a male gamete is called

Formation of primitive streak in the chick embryo is the first sign of

Testosterone is secreted by