Cleavage occurs in

Zygote

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Parthenogenetic egg

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Both A and B

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None of the above

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Solution

The correct option is D Both A and B
Cleavage is basically the process of division of a single-celled zygote into a multicellular blastocyst that further undergoes implantation and development to form a fetus. It takes place even in parthenogenetic eggs. In parthenogenesis, an embryo develops from an unfertilized egg.
So, the correct answer is 'Both A and B'.

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