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Question: Answered & Verified by Expert
In a DNA percentage of thymine is 20% then what will be the percentage of guanine?
BiologyMolecular Basis of InheritanceNEET
Options:
  • A 20%
  • B 40%
  • C 30%
  • D 60%
Solution:
2625 Upvotes Verified Answer
The correct answer is: 30%
According to Chargaff's rule, the ratio of purine bases to pyrimidine bases is equal
A=T, C=G.
If T is 20% then A is 20% and C and G are 30% each.

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