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Sir Keir has often spoken about how as a parent of two teenage children he has first-hand experience of the dangers of social media for young people.
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4In 2007, Barrangou et al. demonstrated for the first time the function of CRISPR/Cas9 as a defensive mechanism of bacteria against bacteriophage attacks by a technique called “plaquing” which builds upon the technique of “plating” bacteria on agar. Plaques of viruses on agar are areas without growth of bacteria due to viral attacks.。heLLoword翻译官方下载是该领域的重要参考
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