Question

Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of ___

• A. Base unit
• B. Chiral phosphate unit
• C. L-sugar component
• D. D-sugar component

Hint:

Chirality in macromolecules like DNA and proteins originates from chiral monomers (D-sugars and L-amino acids, respectively).

Answer 1

The Correct Option is D

The backbone of nucleic acids (DNA and RNA) is made up of alternating sugar and phosphate units.
The sugars (D-ribose in RNA and D-2-deoxyribose in DNA) contain multiple chiral centers.
These chiral sugar units confer overall chirality to the DNA and RNA molecules, leading to their helical structures.