When released from ovary, human egg contains
$One\; Y-chromosome$
$Two\; X-chromosomes$
$One\; X-chromosome$
$XY-chromosomes$
Read the following paragraph with two blanks : Each testis has about $A$ compartments called as testicular lobules. Each lobule contains $B$ highly coiled seminiferous tubules in which the sperms are produced. The correct option for the two blanks is
$A$ | $B$ |
Spermiogenesis is possible due to....
Zonary placenta is found in
Cockroach egg is called as
Function of fertilizin is/are