A : Catalytic functions were assigned to RNA | vedclass

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(A) The $RNA$ world hypothesis suggests that $RNA$ was the first genetic material and performed both genetic and catalytic functions. Because $RNA$ is

Vedclass · Accepted Answer

Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

Vedclass · Answer

(A) The $RNA$ world hypothesis suggests that $RNA$ was the first genetic material and performed both genetic and catalytic functions. Because $RNA$ is inherently unstable and reactive,it possesses catalytic properties (ribozymes). Furthermore,due to the presence of a $2'$-$OH$ group in the ribose sugar,$RNA$ is more reactive and prone to mutations compared to $DNA$. This high rate of mutation allows $RNA$ to evolve faster. Therefore,both the Assertion and the Reason are correct,and the Reason explains why $RNA$ was suitable for early evolutionary processes despite its instability.

$A$ : Catalytic functions were assigned to $RNA$ molecule during evolution.
$R$ : The rate of mutation is quite fast in $RNA$.

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$A$ : Catalytic functions were assigned to $RNA$ molecule during evolution.$R$ : The rate of mutation is quite fast in $RNA$.