So we can sort of check the progress of the code.

而并不仅仅是返回一个最终结果。

麻省理工公开课 - 计算机科学及编程导论课程节选

If this was a sickle patient, so they had this gene instead it wouldn't get cut and when I went to look for that presence of that gene on this gel, it would appear as one large segment instead of a large one and a smaller one.

而如果是个镰状红细胞贫血的病人,他们的基因是不会被限制酶切割的,因此他们基因的凝胶电泳结果就不会呈现,一大一小的结果,而只有一个大的片段

耶鲁公开课 - 生物医学工程探索课程节选