The sex of a fetus can be determined by examining the cells of the amniotic fluid for the presence of:

Sperms become non-motile in the vagina in

Which of the following is a female hormone?

Assertion: Females have less stature than males after puberty.
Reason: This happens because of the presence of $hCG$ in the blood of females.

Fertilisation of an egg cell means......
$(1)$ End of the process of oogenesis
$(2)$ Induces the completion of the second meiotic division
$(3)$ The corpus luteum degenerates
$(4)$ Signals for maintaining progesterone levels in the blood
$(5)$ Formation of a zygote

$I -$ Sperm,$II -$ Testosterone,$III -$ Relaxin,$IV -$ Ovum,$V -$ Estrogen,$VI -$ Progesterone.
Produced by human males $- P$
Produced by human females $- Q$
$P$ $Q$