Question

Most mammals have diploid body cells and haploid gametes. During __________, chromosomes from haploid gametes combine, and a __________ zygote is formed.

Answer 1

During fertilization, chromosomes from haploid gametes combine, and a diploid zygote is formed.

Explanation:

Fertilization is the union of the male gamete(haploid chromosomes) with the female gamete(haploid chromosome) to form a diploid cell called zygote (with diploid chromosomes).