Question

what is the period of rapid mitotic divisions of the zygote without growth
differentiation
cleavage
fertilization
apoptosis

Explanation:

• Differentiation: Process of cells becoming specialized, not about zygote’s rapid mitotic divisions without growth.
• Cleavage: Defined as the period of rapid mitotic divisions of the zygote where the embryo does not grow in size (cells get smaller as divisions occur).
• Fertilization: The process of sperm and egg fusing to form a zygote, not the mitotic division phase.
• Apoptosis: Programmed cell death, not related to zygote’s mitotic divisions.

Answer:

B. Cleavage