$RNA$ contains:

The most abundant $RNA$ found in a cell is .......

Select an incorrect statement regarding $\text{RNA}$ molecules.

Non-genetic $RNA$ is of

Given below are two statements:
Statement $I$: Catalytic RNAs are called ribozymes.
Statement $II$: $RNA$ can undergo mutations,replicate,and catalyse reactions.
In the light of the above statements,select the correct option given below:

The average life span of $mRNA$ in eukaryotes is: