What happens during fertilization in humans after many sperms reach close to the ovum?
Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida.
All sperms except the one nearest to the ovum lose their tails.
Cells of corona radiata trap all the sperms except one.
Only two sperms nearest the ovum penetrate zona pellucida.
Fertilisation of an egg cell it means......
$(1)$ End of process of oogenesis
$(2)$ Induces the completion of the second meiotic division
$(3)$ The corpus luteum degenerates
$(4)$ Signals for maintain progesterone level in blood
$(5)$ Formation of zygote
Unfertilized egg of human contains or When released from ovary, human egg contains
Pregnancy begins with implantation of
Receptors for sperm binding in mammals are present on :
In human female the blastocyst