GENERAL HISTOLOGY

Detailed explanation-1: -zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm). In the embryonic development of humans and other animals, the zygote stage is brief and is followed by cleavage, when the single cell becomes subdivided into smaller cells.

Detailed explanation-2: -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-3: -Zygote-formation is referred to as the first step in the formation of every embryo, and this single cell is formed by the union of two gametes (male and female) as a result of fertilization.

Detailed explanation-4: -During the process of fertilization the sperm fuses with the egg cell. The content of the sperm cell is transferred into the egg, to form the zygote. Hence, the product formed is a single celled zygote.

Detailed explanation-5: -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.