During copulation, semen is released by the penis into the vagina. The motile sperms swim rapidly, fuse with ovum in the ampullary region, resulting in fertilisation. Haploid nucleus of sperm fuses with that of ovum to form diploid zygote.
What is the significance of fertilisation?

Options

A. It restores haploid number of chromosomes.
B. It produces offspring genetically identical to parents.
C. It initiates cleavage.
D. both (b) and (c)

Answer

C