Multiple choice

Which of the following statements is incorrect?

  1. The spermatids differentiate into structurally different complex.

  2. Fertilization is a physico-chemical event.

  3. Cleavage transforms the fertilized ovum into a sphere of aggregated blastomeres.

  4. Cleavage divisions bring appreciable increase in the mass of protoplasm in the developing embryo.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cleavage divisions do not bring any appreciable increasse in the mass of protoplasm in the developing embryo, but there is a marked increase in the chromosomal DNA contents of its cells.

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