Biomolecules - Result Question 48
####48. RNA and DNA are chiral molecules, their chirality is due to
[2007]
(a) chiral bases
(b) chiral phosphate ester units
(c) D-sugar component
(d) L-sugar component.
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Solution:
- (c) Each nucleic acid consists of a pentose sugar a heterocyclic base, and phosphoric acid. The sugar present in DNA is -D (-) -2-deoxy ribose and the sugar present in RNA is D (-)- ribose. The chirality of DNA and RNA molecules are due to the presence of sugar components.
$C 1, C 2, C 3$ and $C 4$ are chiral carbons.
$C 1, C 3$ and $C 4$ are chiral carbons.
