下列有关PCR技术的叙述正确的是 A. 作为模板的DNA序列必须不断的加

下列有关PCR技术的叙述正确的是

A. 作为模板的DNA序列必须不断的加进每一次的扩增当中

B. 作为引物的脱氧核苷酸序列必须不断的加进每一次的扩增当中

C. 反应需要的DNA聚合酶必须不断的加进反应当中

D. 反应需要的DNA连接酶必须不断的加进反应当中

答案

B

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