Question

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

• A. If both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
• B. If both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
• C. If Assertion is true, but Reason is false.
• D. If both Assertion and Reason are false.

Answer 1

Answer: (A)

E. coli is a well-studied prokaryotic cell. Prokaryotic cell lacks true nucleus and membrane bound organelles like mitochondria. Chloroplast, E.R., Golgi body etc. There are an undifferentiated, unorganised fibrillar nucleus without any nuclear membrane in prokaryotic cells. The genetic material of prokaryotic cell is dispersed in cytoplasm and is known as nucleoid.