Question

In dna molecule adenine is 15 what would be percentage of guanine

Answer 1

Answer:

According to Chargaff’s rule, the DNA molecule should have an equal ratio of pyrimidine (cytosine and thymine) and purine (adenine and guanine). It means that the number of adenine molecules is equal to thymine molecules and the number of guanine molecules is equal to cytosine molecules.

% A = % T and % G = % C

If dsDNA has 15% of Adenine, then according to the law, it would have 15% of Thymine.

Thus, percentage of A + T content = 30 %

The remaining 70 % represents both C + G molecule. Since Cytosine and guanine are always present in equal numbers, the percentage of guanine molecule is 35 %.

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