The third cleavage in frog's development is

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(A) In the development of a frog,the first two cleavages are meridional (vertical) and perpendicular to each other. The third cleavage is horizontal (

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Holoblastic and equatorial

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(A) In the development of a frog,the first two cleavages are meridional (vertical) and perpendicular to each other. The third cleavage is horizontal (latitudinal) and equatorial,which separates the animal pole from the vegetal pole. Since the frog egg is mesolecithal,the cleavage is holoblastic (complete) but unequal due to the presence of yolk. Therefore,the third cleavage is holoblastic and equatorial.

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