AP BIOLOGY

Detailed explanation-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).

Detailed explanation-2: -Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote.

Detailed explanation-3: -In humans, the male gamete is the sperm cell and the female gamete is the ovum (also called the egg cell). Both of them are haploid (n). Their union will result in a zygote that is diploid (2n) and by a process called fertilization.

Detailed explanation-4: -A zygote is a fertilized ovum. The germ cells undergo meiosis to reach a haploid state (n) as part of spermatogenesis and oogenesis. The sperm and the unfertilized ovum reinstates a chromosome set in zygote in a diploid state (2n).

Detailed explanation-5: -During fertilization, the sperm penetrates and releases its nucleic material into the egg. This fertilized egg then has genetic material from both gametes, and is therefore a diploid zygote.