Question

Assertion Histones are basic protein of major importance in packaging of eukaryotic $DNA. DNA$ and histone comprise chromatine forming bulk of eukaryotic chromosome.
Reason Histones are five major types $H_{l},\, H_{2}A,\, H_{2}B,\, H_{3}\, and\, H_{4}$.

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

Answer 1

Answer: (A)

Chromosomes contain DNA and histones. DNA with histone octomer form nucleosome, which comprises a major part of chromatin. Histone are of five types $H _{1}, H _{2} A , H _{2} B , H _{3}$ and $H _{4}$.