( A ) 50 per cent of sperms carry the X chromosome while the other 50 percent carry the Y
( B ) After fusion of the male and female gametes the zygote would carry either XX or XY depending on whether the sperm carrying X or Y fertilised the ovum
( C ) The chromosome pattern in the human female is XX and that in the male is XY
( D ) All the haploid gametes produced by the female (ova) have the *** chromosome X whereas in the male gametes (sperms) the *** chromosome is only Y
