October 4, 1973 (in September Chujiu Guichou), the Tong Zhou cattle the Mitsue cell genetic theory breakthroughs. ,

1973, the Xinhua News Agency reported, the Chinese Academy of Sciences, professor of biology Tong Zhou and his students, American scientists cattle Mitsue, in the Institute of Zoology, Chinese Academy of Sciences to conduct collaborative research, first proved by animal experiments the information RNA in the cytoplasm of the cell differentiation, ontogeny and Genetic. The success of this experiment, not only to contribute to the basic theory of the cytogenetic, and the practice of medicine and agriculture will open up a new broad road. [Lssjt.cn]