Question:
In a DNA, percentage of thymine is 20. What is the percentage of Guanine?
In a DNA, percentage of thymine is 20. What is the percentage of Guanine?
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In DNA, the base pairing rule (A=T, G=C) ensures that the percentages of complementary bases are equal.
Updated On: Jan 13, 2026
- 20%
- 30%
- 40%
- 60%
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The Correct Option is B
Solution and Explanation
In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). If thymine is 20%, adenine must also be 20%. Together, A+T = 40%, so G+C = 60%. Since G and C are equal, G = 30% and C = 30%.
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