Biological Classification And System Of Classification Question 291

Question: Assertion : Prokaryotic chromosome differs from a eukaryotic one by the absence of histone proteins. Reason : Bacterial cell is prokaryote.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

Show Answer

Answer:

Correct Answer: A

Solution:

In bacterial cell, a well defined membrane-bound nucleus is not found, i.e., nuclear membrane, nucleolus and chromosomes, like a typical eukaryotic cell, are absent.

It contains a single chromosome, consisting of a ringed or circular DNA filament associated with a small amount of RNA and non-histone proteins.