Question

The mitotic divisions of the zygote are called:

• A. implantation.
• B. cleavage.
• C. differentiation.
• D. none of the above.

Answer 1

The correct option is B cleavage.

The zygote which is formed after fertilisation is a single cell which divides mitotically to produce multiple cells (blastomeres). The mitotic divisions of the zygote are called as cleavage.

Implantation is the process by which an embryo attaches to the uterine wall.

Differentiation is the process by which cells acquire a particular shape and perform a specific function.