Assertion: The true nucleus is generally absent in E.coli a…

Biology Biological Classification Single Correct MCQ

Published on: August 20, 2026

Assertion: The true nucleus is generally absent in E.coli and other prokaryotes.

Reason: An undifferentiated, unorganized fibrillar nucleus without any limiting membrane is observed in prokaryotic cells.

Both Assertion and Reason are true and Reason is correct explanation of Assertion.

Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.

Assertion is true, but Reason is false.

Assertion is false, but Reason is true.

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The correct answer is:

Assertion: True — E. coli and other prokaryotes do not possess a true nucleus.

Reason: True — In prokaryotic cells, genetic material is present as an undifferentiated nucleoid (fibrillar region) without a surrounding nuclear membrane.

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