Major objective of this lecture is to present on process of Cleavage. Here briefly describe on what happens after cleavage begins and how does a single celled zygote become a gastrula. After fertilization, the development of a multicellular organism proceeds by a process called cleavage, a series of mitotic divisions whereby the enormous volume of egg cytoplasm is divided into numerous smaller, nucleated cells. Here also describe on early human development and human prenatal development.
Process of Cleavage
