What percentage of nucleotides with guanine does a DNA molecule contain if the fraction of its nucleotides with adenine is 28%?

univerkov | December 2, 2020 | education

According to the principle of complementarity, A = T, G triple bond with C
According to Chargaff’s rule, the amount of A is equal to the amount of T, and the amount of G is equal to the amount of C. Hence, if the share of A = 28%, then the share of T is also 28%. 28 + 28 = 56.100% -56% = 44%. 44% – for guanine and cytosine together, but since the share of G is equal to the share of C, then 44: 2 = 22.
Answer: 22% is guanine

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