Multiple choice

Which of the following statements about superficial cleavage is correct?

Cleavage is the process of rapid, successive mitotic division of zygote into large cells within a period extending from fertilization to blastula or beginning of gastrulation. All divisions in cleavage are mitotic in nature with the rate of cleavage depending on species & temperature. Early cleavage is synchronous but a late cleavage of the cell division is asynchronous.

  1. It is the cleavage is restricted in active cytoplasm of animal pole.

  2. It occurs in micro or isolecithal eggs resulting blastomere are approximately of equal size.

  3. The cleavage remains restricted to the periphery cytoplasmic region.

  4. It is the process of rapid, successive mitotic division of zygote into large cells.

  5. The cleavage produces unequal size blastomere including micromeres and macromere due to polarization of yolk holoblastic.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In centrolecithal eggs the cleavage remains restricted to the periphery cytoplasmic region,  which is called superficial cleavage. E.g, Arthropods, mainly insects.

Keep practicing — related questions