Трамп высказался о непростом решении по Ирану09:14
Фото: Belkin Alexey / news.ru / Globallookpress.com
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然而，所有這些問題，都被伊朗最高領袖阿里・哈梅內伊（Ali Khamenei）所稱的伊美關係「非戰、非和」狀態所籠罩。
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.