Question

What would have happened if meiosis not occur during the production of human sperm cell and egg cell

Answer 1

Meiosis produces cells which are haploid.

This is to mean they have half the number of chromosomes.

When a sperm and a zygote combine, a diploid organism is formed.

This is because they both have half the number of chromosomes.

If meiosis had not occurred then an organism with more than the expected number of chromosomes is formed.

The organism is thus polyploid in nature.

This is an abnormality.