"So,when an event like this occurs, it is incumbent upon a Democrat to react quickly and decisively, and Obama failed to do it."

VOA: standard.2010.01.06

G2 is a phase that indicates the gap between when DNA synthesis occurs and when the next mitotic event occurs.

2期是在DNA合成期完成后,到分裂期开始前的间期

耶鲁公开课 - 生物医学工程探索课程节选

G2 is a phase that indicates the gap between when DNA synthesis occurs and when the next mitotic event occurs.

2期是在DNA合成期完成后,到分裂期开始前的间期

耶鲁公开课 - 生物医学工程探索课程节选