Question
Biology Question on Structure of DNA and RNA
RNA is a labile molecule due to the presence of:
A
3’-OH group
B
5’-OH group
C
4’-OH group
D
2’-OH group
Answer
2’-OH group
Explanation
Solution
RNA is unstable due to the 2’-OH group, which makes it more prone to hydrolysis in cellular environments. The 2’-OH in RNA, compared to DNA’s absence of this hydroxyl group, contributes to its higher reactivity and lability, leading to faster degradation.