1月20日，省部级主要领导干部学习贯彻党的二十届四中全会精神专题研讨班开班。习近平总书记谆谆告诫：“要树立和践行正确政绩观，坚持从实际出发、按规律办事，自觉为人民出政绩、以实干出政绩。”
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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.