Assertion :Monerans are most primitive. Reason: Monerans have nucleus.

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.
All prokaryotic organisms belong to Kingdom Monera. They do not have a nucleus or other membrane-bound cell organelles like chloroplast and mitochondria. They lack a nucleus and the naked DNA of these organisms is called as an incipient nucleus, nucleoid or genophore.
Hence the correct option is C.

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