Ribozymes are . . . . . . that behave like enzymes.

Provide the full names for the following abbreviations:
$(i)$ $ATP$
$(ii)$ $DNA$
$(iii)$ $RNA$

The high-energy bonds of $ATP$ are between

Choose the correct option for $AMP$.

Which one of the following is $NOT$ purely a nitrogenous base?

$S$ - Statement: $RNA$ contains ribose type of pentose sugar.
$R$ - Reason: $DNA$ contains ribulose type of pentose sugar.