阿摩線上測驗
5. If adenine makes up 20% of the bases in a DNA helix, what percent of the bases is guanine?
(A)20%
(B) 30%
(C) 60%
(D) 80%
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統計： A(1), B(1), C(1), D(0), E(0) #3207219
統計： A(1), B(1), C(1), D(0), E(0) #3207219
