Question

Fertilization occurs when _____.

Answer 1

Two gametes come together and chromosomes combine

Answer 2

Answer:

two gametes come together and chromosomes combine is the correct answer

Explanation:

Fertilization occurs when the haploid gametes are fused to form a zygote.

In human The male sperm fuse with female egg to give rise to a diploid cell inside the women's body in the Fallopian tube.

The sperm and egg have a half number of the chromosome, and they are haploid they have chromosomes (single set), and when they fuse to form a zygote,chromosome combine and Zygote has two sets(23pairs) of the chromosomes.

Thus fertilization is a process which occur when two gametes come together and chromosomes combine.