Working at the leading edge of research on cellular biology and genetic skin disorders, Fuchs was the first to precisely describe keratins - the principal structural proteins of skin cells - and identify diseases caused by mutations in the keratin gene.

VOA: standard.2010.03.29

And one bit of evidence that these genes are implicated is that some unfortunate people have point mutations in these genes.

证明这些基因起作用的一些证据,是这些基因会在某些不幸的人身上,发生点突变

耶鲁公开课 - 心理学导论课程节选

Maybe Merton Miller is right-- these things are "neutral mutations" and changes in dividend policy are meaningless.

也许莫顿·米勒是对的,这些都是"中性突变",变更股利政策是无意义的

耶鲁公开课 - 金融市场课程节选