Question

Explain how parents and offspring of an organism have the same number of
chromosomes, when they reproduce sexually. (3)​

Answer 1

Answer:

In sexual reproduction,

Explanation:

• when two gametes fused together it results in the formation of the zygote that gives rise to a new individual ..when these haploid gamestes 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.

Answer 2

Answer:

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.

(OR)

In sexual reproduction, when two gametes fused together it results in the formation of a zygote that gives rise to a new individual. ... 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.