Q. In a DNA percentage of thymine is 20% then what will be percentage of guanine?
A) 20%
B) 40%
C) 30%
D) 60%
Explanation
In a DNA, the percentage of thymine is 20%. So, as it pairs with adenine, it is also 20%. So, the guanine and cytosine together forms 60% of DNA and hence, guanine is 30%.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.