COMEDK · Chemistry · 30. Biomolecules
Which of the following statement/s about nucleic acids is/are correct?
i. The chirality of both DNA and RNA molecules is due to the L-sugar component.
ii. The complementary bases in DNA are adenine \& thymine and guanine \& cytosine.
iii. \(\quad \beta\)-D-glucopyranose is the sugar moiety present in the RNA molecule.
iv. RNA controls the synthesis of proteins.
- A (i) and (iii)
- B (i), (iii) and (iv)
- C (ii) and (iv)
- D (i), (ii) and (iv)
Answer & Solution
Correct Answer
(C) (ii) and (iv)
Step-by-step Solution
Detailed explanation
Statement (i) is incorrect because the chirality of DNA and RNA is due to the D-sugar component, specifically D-2-deoxyribose in DNA and D-ribose in RNA. Statement (ii) is correct. In DNA, adenine (A) pairs with thymine (T) via two hydrogen bonds, and guanine (G) pairs with…
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