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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.
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張又俠曾被視為習近平在軍中最核心的盟友。兩人的父輩是革命戰友，都是陝西籍的西北軍領袖。
Under US President Donald Trump it is expected to be "full speed ahead" for regulatory approval, says Scott Wagner, head of the antitrust practice at the law firm Bilzin Sumberg.