Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and the one blank component X in it:

1. Category: Cholesterol; Component: Guanine
2. Category: Amino acid; Component: NH2
3. Category: Nucleotide; Component: Adenine
4. Category: Nucleoside; Component: Uracil
Subtopic:  Nucleic Acid: Nucleotides | Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 72%
Level 2: 60%+
AIPMT - 2012
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