AP PSYCHOLOGY

Detailed explanation-1: -Once fertilized, the egg is called a zygote. Fertilization is not complete, however, until the two haploid nuclei (called pronuclei ) have come together and combined their chromosomes into a single diploid nucleus. In fertilized mammalian eggs, the two pronuclei do not fuse directly as they do in many other species.

Detailed explanation-2: -A zygote, also known as a fertilized ovum or fertilized egg, is the union of a sperm cell and an egg cell. The zygote begins as a single cell but divides rapidly in the days following fertilization. The zygote’s single cell contains all of the 46 necessary chromosomes, getting 23 from the sperm and 23 from the egg.

Detailed explanation-3: -Medically, a zygote is termed as zygocyte. The embryo is termed as a diploid eukaryote. The mitosis of zygote results in the formation of an embryo. An embryo is a stage following the zygote stage. The process of formation of the zygote is known as fertilization.

Detailed explanation-4: -During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote.

Detailed explanation-5: -When a fertilized egg has implanted in the uterus, the group of cells that will become a baby is called an embryo. A developing, fertilized egg is known by several names within the first 2 weeks after conception, including zygote, morula (day 4), and blastocyst (day 5).