A forensic scientist determines that a DNA sample contains 30% Adenine. What is the expected percentage of Guanine in this double-stranded DNA?
Q1. A forensic scientist determines that a DNA sample contains 30% Adenine. What is the expected percentage of Guanine in this double-stranded DNA?
Answer: 20%
Explanation: According to Chargaff's rule, Adenine equals Thymine; if Adenine is 30%, Thymine is 30%, leaving 40% for G-C (20% each).