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Question

Type of cleavage found in mammals is

A
Holoblastic
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B
Meroblastic
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C
Superficial
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D
None of the above
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Solution

The correct option is A Holoblastic
Holoblastic cleavage is that in which the cleavage furrow divides the egg completely and the blastomeres formed may be equal or unequal in size. It occurs in alecithal or microlecithal eggs. Generally, the mammalian egg is alecithal, meaning no yolk.
Thus, the correct answer is option A.

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