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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# The Z80 experiment
对扣押的物品，应当妥善保管，不得挪作他用；对不宜长期保存的物品，按照有关规定处理。经查明与案件无关或者经核实属于被侵害人或者他人合法财产的，应当登记后立即退还；满六个月无人对该财产主张权利或者无法查清权利人的，应当公开拍卖或者按照国家有关规定处理，所得款项上缴国库。