CUET · BIOLOGY · PYQ PAPER 2023
A double stranded DNA has 30\% of Thymine. The percentage of Guanine in it would be:
- A 70%
- B 20%
- C 40%
- D 30%
Answer & Solution
Correct Answer
(B) 20%
Step-by-step Solution
Detailed explanation
\( \%A = \%T = 30\% \) \( \%G + \%C = 100\% - (\%A + \%T) = 100\% - (30\% + 30\%) = 40\% \) \( \%G = (\%G + \%C) / 2 = 40\% / 2 = 20\% \)
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