48. It became apparent to Watson and Crick after completion of their model that the DNA molecule could carry a vast amount of hereditary information. Which of the following characteristics of DNA is responsible for this?
(A) phosphate-sugar backbones
(B) side groups of nitrogenous bases
(C) complementary pairing of bases
(D) sequence of bases
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統計: A(0), B(0), C(1), D(0), E(0) #3507018
統計: A(0), B(0), C(1), D(0), E(0) #3507018