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【单选题】
下面有关 II 型限制性核酸内切酶的叙述正确的是 ( )A.
在特异序列（识别位点）对 DNA 进行切割
B.
一些限制酶在识别位点内交错切割，产生黏性末端
C.
一些限制酶在识别位点内相同的位置切割，产生平末端
D.
以上说法都正确
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A.
quiet
B.
calm
C.
tranquil
D.
silent
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A.
True
B.
False
C.
Not given
D.
Not sure
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