Sponsor Area

Molecular Basis Of Inheritance

Question
CBSEENBI12047487

Given below are the set of statements describing the structural details of Purines (A) and Pyrimidines (BJ.

I. Nine - membered, double ring

II. Six - membered, single ring

III. Contains Nitrogen atoms at four positions

IV. Contains Nitrogen atoms at two positions

Segregate the statements I - IV into categories A and B and choose the correct option.

  • A B
    I, IV II, III
  • Only I Only IV
  • Only II Only I
  • I, III II, IV

Solution

D.

I, III II, IV

Purine is a heterocyclic aromatic organic compound that consists of a pyrimidine ring fused to an imidazole ring. It is nine membered, double ring and contains Nitrogen atoms at four positions.

Pyrimidine is a simple aromatic ring composed of two nitrogen atoms and four carbon atoms, with hydrogen atoms attached to each carbon.