Normally the gametes are disease free in human beings or even in other animals because
Germs cannot attack the gametes
Gametes are immune to diseases
The germplasm is segregated very early and is not subjected to diseases from which the somatic cells may suffer
None of the above
Which one of the following statement is correct
Fleshy folds of tissue which extends down the mons pubis and surrounds the vaginal opening is called
Cleavage in bird's egg is
Rapid secretion of $LH$ in ovulation causes
The second maturation division of the mammalian ovum occurs