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.
数据：黄金萍 曹妍 罗仙仙 丁莉 柯玉圆 卫酉祎 唐家乐 龙洁 付烁畦 吴舒敏 蒙露 朱奕萱 林骏杰 邹子贤 陈炜。heLLoword翻译官方下载对此有专业解读
It's a gate -- dispatch by type，更多细节参见safew官方版本下载
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