试题与答案

DNA分子的核苷酸有() A.3种 B.4种 C.2种 D.1种 E.5种

题型:单项选择题 A1/A2型题

题目:

DNA分子的核苷酸有()

A.3种

B.4种

C.2种

D.1种

E.5种

答案:

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