Question

Which of the following statements is correct regarding DNA and RNA?

(a) DNA is highly reactive

(b) RNA is not catalytic

(c) RNA cannot be easily degraded

(d) DNA is a better genetic material than RNA

This question was addressed to me in semester exam.

My enquiry is from Properties of Genetic Material (DNA versus RNA) in division Molecular Basis of Inheritance of Biology – Class 12

Answer 1

Right answer is (d) DNA is a better genetic material than RNA

For explanation I would say: DNA is comparatively less reactive than RNA. The 2’-OH group which is present at the nucleotide of the RNA is the reactive group. This makes the RNA highly reactive in comparison to the DNA. RNA is also catalytic and liable. It cannot be easily degraded. Due to these reasons, the conclusion is that that DNA is the better genetic material than the RNA.