Diagnosing cancer is a challenge because it requires expensive , time-consuming assays .
诊断癌症是项有挑战性的项目，因为它需要昂贵而又费时的化验。
He concluded that the assays for mutations in either gene should be considered complementary tests , reflecting mutations that occur through different mechanisms .
他还指出，对于任何一种基因突变的化验分析都应作为补充试验，以此来反映不同机制所产生的变异。
Using a combination of mutation screens , protein interaction analysis and in vitro assays james hope to better understand the role of these proteins and in particular the role of cpsc .
