AP BIOLOGY

Detailed explanation-1: -A zygote is the first diploid cell that is formed by the fusion of male and female gametes resulting in the formation of an embryo. The zygote stage development occurs in the first week of fertilization.

Detailed explanation-2: -Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.

Detailed explanation-3: -During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the uterine lining-a process called implantation.

Detailed explanation-4: -A cell that has two copies of each chromosome is referred to as a diploid. Hence, a Zygote is diploid. Each chromosome is present in two homologous, or comparable, copies in almost all human body cells. Due to the presence of both of its parents’ genes, the zygote is diploid (carrying two sets of chromosomes).

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.