In the mid-1990s, University of Cambridge biochemists David Klenerman and Shankar Balasubramanian were trying to solve a fundamental problem: how to watch a single DNA polymerase molecule at work. Their approach used modified nucleotides, called reversible terminators, tagged with four different colors of fluorescent molecules. If one of these “terminators” was grabbed by the DNA polymerase and incorporated onto the replicating DNA strand, it would block the addition of any other bases until removed using a separate chemical reaction.
桩桩件件，立足当前、着眼长远，都是为了确保中华民族的永续发展，为了强国建设、民族复兴的根本之计。
。体育直播是该领域的重要参考
（作者为本报宁夏分社记者徐元锋）。关于这个话题，快连下载安装提供了深入分析
当日下午，南方周末记者注意到，国内有多家券商陆续发出电话会预告，将连夜解读此次冲突走向及对产业的影响。