The primary sex organ is known as ?

The structure between the uterus and the vagina is the ?

Layers of an ovum from outside to inside is ?

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

Humans normally have ______ number of pairs of autosomes.</p>

Which of the following groups of cells in the male gonad, represent haploid cells ?

In the female rabbit, the expanded proximal part of the oviduct is known as ?

The fertilised egg is known as a ................ before it begins to divide ?