NEET BIOLOGY

Detailed explanation-1: -Zygotic stage: The zygote is formed when the male gamete (sperm) and female gamete (egg) fuse. Blastocyst stage: The single-celled zygote begins to divide into a solid ball of cells.

Detailed explanation-2: -Final answer: The single cell produced after fertilization is called zygote.

Detailed explanation-3: -A zygote is the fertilized egg formed when a sperm combines with (fertilizes) an egg at conception. The zygote then starts to divide and forms an embryo. The embryo is called a fetus in later stages of prenatal (before birth) development.

Detailed explanation-4: -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-5: -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.