Question

Given below are two statements:
Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below :

• A. Both Statement I and Statement II are false.
• B. Statement I is true but Statement II is false.
• C. Statement I is false but Statement II is true.
• D. Both Statement I and Statement II are true.

Answer 1

Answer: (C)

Statement I is false but Statement II is true.

Answer 2

Statement I is incorrect. In prokaryotes, there is no well-defined nucleus or nucleosomes as found in eukaryotes. The DNA in prokaryotes is located in a region called the nucleoid, but it is not associated with histones or proteins in the same way as eukaryotic DNA.
Statement II is true. In eukaryotes, the negatively charged DNA is indeed wrapped around the positively charged histone octamer to form nucleosomes, which are the basic units of chromatin organization.
Therefore, the correct option is (C): Statement I is false but Statement II is true.