1970年分子生物学和遗传学的发展,被认为是了解一个单一的微生物细胞的活动机理的强有力的工具,而对生物机体的许多活动,不少分子生物学家却认为是难以攻克的,因为生物机体中的活动过程是非常复杂,似乎是深不可测的。肿瘤问题就是如此,认为是不可能将它解析到一组小小的、可分开而又易于研究的部分。因此,过去多方面而详尽的肿瘤研究工作,虽然增加了不少资料,而对于肿瘤来源的核心问题仍一无所知。 The development of molecular biology and genetics in 1970 is considered to be a powerful tool for understanding the mechanism of action of a single microbial cell. Many molecular biologists find it difficult to overcome many of the activities of biological organisms, Because the process of living in biological organisms is very complicated, it seems unfathomable. This is the case for the oncology problem, where it is impossible to resolve it to a small group of separable and easily researched parts. Therefore, the multifaceted and exhaustive study of oncology in the past, although adding a lot of information, remains unknown at the core of the cancer sources.