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NEET2009ZoologyHuman ReproductionActual

A change in the amount of yolk and its distribution in the egg will affect

Options

  1. Aformation of zygote
  2. Bpattern of cleavage
  3. Cnumber of blastomeres produced
  4. Dfertilization

Correct answer

B. pattern of cleavage

Step-by-step solution

The mode of cleavage is determined by the amount of yolk and its distribution. (i) Holoblastic-The cleavage, in which the segmentation lines pass through the entire egg, dividing it completely, eg, frog, human egg, etc. (ii) Meroblastic-The lines of segmentation do not completely pass through the egg and remain confined to a part of the egg, eg, Insects, birds, reptiles.

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