In a double-stranded DNA molecule, if Adenine makes up 20% of the total bases, what will be the percentage of Cytosine according to Chargaff's Rule?
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Official Solution & Conceptual RationaleNCERT Class 12 Biology - Molecular Basis of Inheritance
By Chargaff's rule: %A = %T and %G = %C. Since %A = 20%, %T = 20%. Together A + T = 40%. The remaining G + C = 60%, meaning Cytosine (%C) = 60 / 2 = 30%.