The yolk plug of gastrula represents in the later stage its
Anterior end
Posterior end
Dorsal side
Ventral side
In macro and telolecithal eggs site of amphimixis lies in the
Which of the following cells secrete testicular hormones called androgens and form endocrine part of the testis?
Capacitation refers to changes in the
Why it is scientifically correct to say that sex of the baby is determined by the father and not by the mother?
In man sperms move after ejaculation at a rate of nearly