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.
SelectWhat's included，这一点在搜狗输入法2026中也有详细论述
Фото: Yves Herman / Reuters。91视频对此有专业解读
With only a handful of clues to answer, the daily puzzle doubles as a speed-running test for many who play it.
在每年11月到翌年2月中旬的南極夏季期間，麥肯齊負責管理駐守「哈利六號」的40人團隊。