摘要： 1953年，沃森和克里克阐明了他们关于DNA双螺旋结构的假说。沃森-克里克模型标志着分子生物学的诞生。沃森和克里克为遗传学乃至整个生命科学作出了非凡贡献。

The Double Helix Model of DNA Structure——The Physical Nature of the Gene
GAO Yi-zhi
Southeast University,School of Medicine,Nanjing 210009,China
Abstract:In 1953,Watson and Crick set forth their hypothesis for the double-helical nature of DNA.The Watson-Crick model had an immediate effect on the emerging discipline of molecular biology.It was a remarkable feat and highly significant in the history of genetics and biology.
Key words：The Watson-Crick model;history of genetics