Question

Explain how offspring of parents in sexual reproduction have the same number of chromosomes.

Answer 1

In sexual reproduction, when two gametes fused together it results in the formation of a zygote that gives rise to a new individual. Each gamete has 23 (n=Haploid) chromosomes that mean half the number of chromosomes in a parent cell (diploid 2n=46 chromosomes). When these haploid gametes fuse to form a zygote, the zygote will have 23+23= 46 chromosomes which are equal to the number of chromosomes in the parent cell. Hence both the parents and offspring have the equal number of chromosomes.