Question
Biology Question on cell cycle and cell division
What is true for cleavage
A
Size of embryo increase
B
Size of cells decrease
C
Size of cells increase
D
Size of embryo decrease
Answer
Size of cells decrease
Explanation
Solution
The correct option is (B) : Size of cells decrease
The zygote splits frequently during cleavage to separate the enormous cytoplasmic bulk into several tiny blastomeres. Because cells are still held within the zona pellucida, it includes cell division without size increase. However, during cleavage, cell size reduces.