Assertion :Embryonal knob of blastocyst is determined to form embryo and extra-embryonic membranes. Reason: Blastocoel of blastocyst represents future coelom.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
The blastocyst is the 16-celled stage of an embryo formed after successive mitotic divisions or cleavage. Embryonal knob of a blastocyst is determined to form the embryo and extra-embryonic membranes. Blastocoel is the fluid-filled cavity present in the blastula or the mammalian blastocyst. In the given question, the assertion is correct, but the reason is an incorrect statement.
So, the correct answer is 'Assertion is correct but Reason is incorrect'.

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