Question

(a) What would be the ratio of chromosome number between an egg and its zygote?
(b) Distinguish between a gamete and a zygote.

Answer 1

Explanation:

1:2

In human beings, the egg cell is haploid while the zygote is diploid in nature. There are 23 chromosomes in an egg cell and 46 chromosomes in a zygote. Therefore, the ratio of chromosome number between an egg and a zygote would be 1:2

Gamete refers to a haploid sex cell that is a sperm in males and egg (oocyte) in females. Zygote is the diploid cell that results from the fertilization between an egg and a sperm. In mammals, the sperm (male gamete) fertilizes the egg (ovum, the female gamete) and the fertilized egg is called a zygote