Result In A Zygote. At that point the zygote becomes an embryo. The zygote is the first diploid cell that forms following fertilization by fusion of the haploid oocyte egg and spermatozoa sperm resulting in the combination of their separate genomes.
It remains a zygote until it begins to divide. Cleavage ends with the formation of the blastula. A zygote is the union of the sperm cell and the egg cell.
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.
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. This cell may then enter meiosis or mitosis depending on the life cycle of the species. The zygotes of many species undergo rapid cell cycles with no significant overall growth producing a cluster of cells the same size as the original zygote. The result of karyogamy is the formation of a diploid cell called the zygote or zygospore.