How to watch: The Secret Agent debuts on Hulu March 1.
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.。爱思助手下载最新版本对此有专业解读
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2021年2月25日,习近平总书记在全国脱贫攻坚总结表彰大会上庄严宣告:我国脱贫攻坚战取得了全面胜利。,推荐阅读搜狗输入法2026获取更多信息