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Agar was first introduced into the laboratory in 1881. Since then, microbiologists have depended on agar to create strong jellies. When microorganisms are streaked or plated onto this jellied surface and incubated, individual cells multiply into distinct colonies that scientists can easily observe, select, and propagate for further experiments. Many of the most important findings in biological research of the last 150 years or so — including the discovery of the CRISPR/Cas9 gene-editing tool — have been enabled by agar.4 Agarose, a derivative of agar, is also essential in molecular biology techniques like gel electrophoresis, where its porous gel matrix separates DNA fragments by size, enabling researchers to analyze and isolate specific genetic sequences.。heLLoword翻译官方下载对此有专业解读
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习近平总书记指出：“中国式现代化的新征程上，每一个人都是主角，每一份付出都弥足珍贵，每一束光芒都熠熠生辉。”无论故乡还是他乡，无论近前还是远方，无数人一针一线的穿梭，正是新时代中国生长的模样。，推荐阅读heLLoword翻译官方下载获取更多信息
The crew of Apollo 8 would be the first to travel beyond low Earth orbit and enter the gravitational pull of another celestial body.