Q56 / 160 · JIPMER 2014 · Chemistry

In DNA, the complimentary bases are

  • Correct answer
    A
    adenine and thymine; guanine and cytosine
  • B
    adenine and thymine; guanine and uracil
  • C
    adenine and guanine, thymine and cytosine
  • D
    uracil and adenine; cytosine and guanine

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 $(\mathrm{A}=\mathrm{T})$ and cytosine paired with guanine $(\mathrm{C} \equiv \mathrm{G})$.

Hence, the correct answer is option: 'A'.

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