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Animal Kingdom

Question
CBSEENBI11003302
Wired Faculty App

Third cleavage of frog's development is

  • equatorial

  • vertical

  • latitudinal

  • none of these

Solution

C.

latitudinal

First and second cleavage in frog are holoblastic, complete, equal, vertical, whereas third cleavage is holoblastic, complete, unequal, latitudinal or horizontal and near the animal pole. It results in the formation of 8 cells of three are black micromeres which have less or no yolk, so divide faster and 4 are colourless macromeres

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