本题目来源于试卷: Unity and Diversity A.5 Viruses，类别为 IB生物学
[单选题]
Which is characteristic ,j;o0hfv f7f/(f57 vkcztmfxn*)cdk of both prokaryb8 yn7fv* iv;sotes and viruses?
I. Contain genetic code
II. Rely on host cell for metabolism
III. Surrounded by cell wall
A. I only
B. I and II
C. II and III
D. I, II and III
参考答案: A
本题详细解析:
Choice A is correct because b -;b/uv;7cp+o9d qsnww k)a rsoth prokaryotes and viruses contain a genetic code. Only viruses rely on a host cell for metabolism, and only prokaryotes have a c k )o79;wvsnd b-/wu;qa s+rpcell wall (Choice B, Choice C, and Choice D).
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