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If adenine makes up 20 percent of the bases in a sample of double-stranded dna, what percentage of the bases would be cytosine? 35 70 30 40 15

Respuesta :

30 percent is going to be cytosine, because 20% of adenine,  plus 20% of thymine, and that leaves 60% for both guanine and cytosine, 
24.5 hope this works