AIIMS 2018 Botany Nucleic Acids MCQ Question
Select the option having correct matching of structure and sequence of the molecules given below –
A - Uracil, B - Glucose, C - Ribose, D – Adenine
A - Adenine, B - Glucose, C - Uracil, D – Ribose
A - Uracil, B - Ribose, C - Glucose, D – Adenine
A - Adenine, B - Uracil, C - Ribose, D – Glucose
Correct Answer
Detailed Explanation
Option A is correct because it accurately matches the structures of the molecules: Uracil (A) is a pyrimidine nucleotide found in RNA, Glucose (B) is a simple sugar (C₆H₁₂O₆), Ribose (C) is a five-carbon sugar (C₅H₁₀O₅) crucial for RNA, and Adenine (D) is a purine nucleotide.
Option B incorrectly identifies Uracil as C, which is not a sugar, while C incorrectly places Glucose as C instead of B. Option D misplaces Glucose as D, which is not consistent with its structure as a monosaccharide. Each option fails to align the molecular identities with their respective structures correctly.
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