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.
McConnell Family
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在泱泱大国领航者心中，“人民”二字的分量永远最重。扶贫始终是习近平总书记工作的一个重要内容，花的精力最多。
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这个文集的名称也颇有巧思——致敬德国诗人里尔克《给一个年轻诗人的信》，这也是乔布斯生前最喜欢的读物之一。。服务器推荐对此有专业解读
Анна Габай (Редактор отдела «Силовые структуры»)