What is true for cleavage ?

Options

A. size of embryo increases
B. size of cells decreases
C. size of cells increases
D. size of embryo decreases

Answer

B

Explanation

(b) Cleavage is a suvvession of rapid ell division during which the cells undergo the S phase (DNA sunthesis) and M-phse (mitosis) of the cell cycle but often virtually skip the `G_(1)` and `G_(2)`- phases. Cleavage simply divides the cytoplasm of larger cells into smaller cells called blastomeres.