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.
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中國外交部發言人林劍在2月6日的記者發布會上更是直接提出:「很高興看到越來越多的外國朋友有意願、有機會感受中國的發展變化,體驗中國百姓的煙火日常」。。搜狗输入法2026是该领域的重要参考
文 | 闻旅派,作者 | 郭鸿云,编辑 | Sette