NEET Zoology Biomolecules Questions Solved


If DNA percentage of thymine is 20. What is the percentage of guanine?                         [2002]

(a) 20%

(b) 40%

(c) 30%

(d) 60%

Audio Explanation:


(c) Total DNA (100)= A + T + C + G

                         A = 20% (given)

                         A = T (base pairing rule)

                     100 = 20+ 20 + C + G

                  C + G = 100-40 = 60

                         C = G = 30

Difficulty Level:

  • 20%
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  • 62%
  • 6%
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