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Questions  

Which of the following feature makes the RNA chemically more reactive and structurally less stable nucleic acid than DNA?

a
Less rate of mutation.
b
Indirect involvement in protein synthesis.
c
Free 2’ H group.
d
Catalytic nature.

detailed solution

Correct option is D

RNA used to act as a genetic material as well as a catalyst (there are some important biochemical reactions in living systems that are catalysed by RNA catalysts and not by protein enzymes). But, RNA being a catalyst was reactive and hence unstable. Therefore, DNA has evolved from RNA with chemical modifications that make it more stable.

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Similar Questions

Identify the correct statement(s).
(a) DNA being double stranded and having complementary strand further resists changes by evolving a process of repair.
(b) RNA used to act as a genetic material as well as a catalyst
(c) Essential life processes such as metabolism, translation, splicing, etc., evolved around RNA.


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