单选:下列哪种情况下,互补的两条DNA单链将会结合成DNA双链()A.A.退火B.变性C.加聚合酶D.加连接酶E.以上都不是

题目内容:
下列哪种情况下,互补的两条DNA单链将会结合成DNA双链()
A.A.退火B.变性C.加聚合酶D.加连接酶E.以上都不是
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