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JIPMER2014ChemistryBiomolecules

In DNA, the complimentary bases are

Options

  1. Aadenine and thymine; guanine and cytosine
  2. Badenine and thymine; guanine and uracil
  3. Cadenine and guanine, thymine and cytosine
  4. Duracil and adenine; cytosine and guanine

Correct answer

A. adenine and thymine; guanine and cytosine

Step-by-step solution

Deoxyribonucleic acid (DNA) has the purine bases adenine and guanine and pyrimidine bases thymine and uracil. According to base pairing rule adenine paired with thymine ( A = T ) and cytosine paired with guanine ( C G ) .

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