Question

The sugar moiety present in $RNA$ molecules is :

• A. $\beta -D-2-\text{deoxyribose}$
• B. $\beta -D-\text{galacose}$
• C. $\beta -D-\text{fructose}$
• D. $\beta -D-\text{ribose}$

Answer 1

The correct option is D $\beta -D-\text{ribose}$

$RNA$ molecule is composed of phosphoric acid, a pentose sugar and some cyclic bases containing nitrogen. $RNA$ has $\beta -D-\text{ribose}$in it as the sugar moiety. $DNA$ contains deoxyribose, which has one less hydroxyl group than ribose in $RNA$.
Hence, option (d) is correct.