2020-2021学年高二生物浙科版选修一同步课时作业（13）DNA片段的PCR扩增
※题型：单选题※知识点：单选题※试题难度：较易<br>有关<img技术的说法,不正确的是( )<br><img A.<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/1D797B33CAE6B82166B93A2A899B9539.png"><br>是一项在生物体外复制特定的<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/FEC4DED8BAA9AC95FB7D22634F1CF9B4.png"><br>片段的核酸合成技术<br>B.<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/1D797B33CAE6B82166B93A2A899B9539.png"><br>技术的原理是<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/FEC4DED8BAA9AC95FB7D22634F1CF9B4.png"><br>双链复制<br>C.利用<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/1D797B33CAE6B82166B93A2A899B9539.png"><br>技术获取目的基因的前提是要有一段已知的核苷酸序列目的基因<br>D.<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/1D797B33CAE6B82166B93A2A899B9539.png"><br>扩增中必须有解旋酶才能解开双链<img src="https://picture2.zhihuicn.com/testImage/1/2017/2/20/FEC4DED8BAA9AC95FB7D22634F1CF9B4.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/1/9/2017/56c0514e29e34d539cd1f38a337b5c12/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/1/9/2017/008319eceab44a90accaf7542d0f67e3/A7ADB52FE2EF423C0F6A2DFC4F9639F3.png"><br><br>
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