Question

"if an organism's dna contains 20% adenine nucleotides, what percentage of its dna is composed of guanine nucleotides?"

Answer 1

So if it's 20% adenine (A) then it's 20% (T)...because A always pairs with T. That adds up to 40%....60% therefore is G+C...so you'd have 30% Cytosine (C) and 30% Guanine (G).