GENERAL KNOWLEDGE

Detailed explanation-1: -The zygote undergoes mitotic divisions with no significant growth, a process known as cleavage leading to the development of the multi-cellular embryo. This process is also known as segmentation and cellulation.

Detailed explanation-2: -Shortly after fertilization, the zygote undergoes cleavage, a series of rapid mitotic divisions with no period of growth during each cell cycle.

Detailed explanation-3: -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.

Detailed explanation-4: -Induction of Cell Cleavage Plane by Chromatin and Amphiasters. Typically, the cell divides perpendicular to its longest axis into two equal daughter cells. At the core of this process is the spindle apparatus (Fig. 2) with the two microtubule asters (amphiasters) emanating from its centrosomes.