As McKenzie speaks about his job, it is a stunning Antarctic summer's day, a balmy -15C. The view outside his window is a vast expanse of white as far as the eye can see, smoothed over by an equally vast layer of pure blue.
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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A residents’ group has lost its high court challenge against a Home Office decision to use an army training camp to house asylum seekers.。同城约会是该领域的重要参考
（三）办理本社区居民的公共事务和公益事业，开展便民利民的社区服务活动，关心关爱老年人、儿童、残疾人和困难居民；
Tyrrells was founded by Herefordshire potato farmer William Chase in 2002, with the crisps made in a converted potato shed in his father's potato farm in Leominster.