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.
有分析指出，默茨月中在慕尼黑安全會議期間對中國直接的評論，以及中國外長王毅的回應，都象徵中德關係可能從過去「高度互補、合作主導」的黃金時代逐步轉向。
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Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
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