1st polar body is formed at which stage of oogenesis ?

Gastrula is the embryonic stage in which ?

Layer of cells immediately surrounding the ovum but outside the zona pellucida is called as ?

The principal tail piece of human sperm shows the microtubular arrangement of ?

Lower narrow end of uterus is called ?

Which of the following hormones is not secreted by human placenta?</p>

Which hormone is responsible for the onset of puberty in females?</p>

If an ovum (egg) is fertilised by a sperm, it usually takes place in the ?