Question

Read the following and answer from given below:

During copulation, semen is released by the penis into the vegina. The motile sperms swim rapidly, fuse with the ovum in the ampullary region, resulting in fertilization. The haploid nucleus of sperm fuses with that of the ovum to form a diploid zygote.

What is the signifacance of fertilisation?

Options

• It restores a haploid number of chromosomes.

• It produces offspring genetically identical to parents.

• It initiates cleavage.

• Both It produces offspring genetically identical to parents and It initiates cleavage.

Answer 1

It initiates cleavage.

Explanation:

Fertilization restores a diploid number of chromosomes. It introduces variations as it combines the characters of the two parents.