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.
中國在2022北京冬奧愛上了這位「冰雪公主」——作為冬奧形象代言人，她完美兌現了承諾。
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В 2026 году мировой рынок смартфонов ощутит самое сильное падение в истории. Об этом говорится в отчете International Data Corporation (IDC).，推荐阅读夫子获取更多信息
Следователи МВД России выявили новые эпизоды по уголовному делу о договорных матчах на играх Футбольной национальной лиги (ФНЛ). Об этом сообщает официальный представитель ведомства Ирина Волк.。关于这个话题，51吃瓜提供了深入分析