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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.
。同城约会是该领域的重要参考
“人民对美好生活的向往，就是我们的奋斗目标”
if(h->ref--)return;
Мощный удар Израиля по Ирану попал на видео09:41