A : Catalytic functions were assigned to RNA | vedclass

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Question

(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 $RNA$.

Similar Questions

The $A/U$ and $G/C$ ratio in $RNA$ is:

Which was the first genetic material in living organisms?

How many polynucleotide chains is $RNA$ composed of?

Which of the following statements is false for $RNA$?
$(i)$ $RNA$ can directly code for the synthesis of proteins
$(ii)$ It is a very common process to synthesize $DNA$ from $RNA$
$(iii)$ $RNA$ is used as genetic material only in humans
$(iv)$ One polynucleotide chain is present in $RNA$

Choose the incorrect statement regarding $RNA$.

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