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.
Владимир Зеленский. Фото: Michael Bihlmayer / Keystone Press Agency / Global Look Press，详情可参考safew官方下载
Hollie Ridley, Labour’s general secretary, sent a note to No 10 at the end of January saying it was “clearly a two-horse race” with Reform UK, and only 3% of voters were saying they would stick with the Greens.。heLLoword翻译官方下载是该领域的重要参考
Российское посольство заявило о спекуляции молдавских СМИ20:43