The investigation into the crime has led to various leads as well as plenty of dead ends.

She has to finish refereeing an article for Nature.

They reach'd the hotel: forth stream'd from the front door / A tide of well-clad waiters, and around / The mob stood, and as usual several score / Of those pedestrian Paphians who abound / In decent London when the daylight's o'er; / Commodious but immoral, they are found / Useful, like Malthus, in promoting marriage.

The method is based on the fact that RNA with specific undermodifications accumulates under nonpermissive growth conditions and that such a defect can be detected by remodification either in vivo at permissive conditions or in vitro.