In a DNA molecule, guanyl nucleotides make up 30% of the total. Determine the percentage of other types of nuclides.

In a DNA molecule, there are as many nucleotides with guanine as with cytosine, and the number of nucleotides with adenine is equal to the number of nucleotides with thymine. In this way:

C = G, G = 30%, C = 30%, G + C = 60%

100% – 60% = 40% (accounts for the remaining nucleotides, adenine and thymine).

A = T, 40% / 2 = 20%, A = 20%, T = 20%.



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