阿摩線上測驗
32. A base (purine or pyrimidine) can be covalently linked to a ribose through a ___________ bond in DNA.
(A) ether
(B) ester
(C) amide
(D) glycosidic
(E) none of the above.
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統計： A(0), B(1), C(1), D(1), E(0) #2844125
統計： A(0), B(1), C(1), D(1), E(0) #2844125
