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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.
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Even expanding her search to healthcare, where she previously worked and which is considered one of the economy's most resilient sectors, has not helped.
进入新时代，我国苹果产业在品种结构、生产模式与科技支撑上实现了显著提升。产业格局从传统分散种植转向优势产区的集约化、标准化生产，发展方式也从“靠天吃饭”迈向科技全方位赋能。品种选育、矮砧集约栽培、节水灌溉、智能分选等技术广泛应用，清晰勾勒出产业升级的轨迹。
For transforms that need cleanup on abort, add an abort handler: