20世纪自然科学得到迅猛的发展,在上半叶属于物理学的天下,相对论、量子力学和核裂变等大批成就涌现,而在后半个世纪则属于生物学,这是因为1953年沃森和克里克DNA双螺旋模型的提出标志着分子生物学的诞生,从而成为随后科学发展的主流。DNA双螺旋模型的一个关键是碱基配对,而该概念是在另一位科学大师欧文.查格夫(Erwin Chargaff)的研究成果基础上提出的。 In the first half of the 20th century, the natural sciences developed rapidly. In the first half of the 1960s, a great deal of achievements such as relativity, quantum mechanics and nuclear fission emerged while those in the latter half of the century belonged to biology. This was because Watson and Watson The introduction of the Crick DNA double helix model marked the birth of molecular biology and became the mainstream of subsequent scientific developments. One of the keys to the DNA double helix model is base pairing, a concept that was based on the work of another scientific guru, Erwin Chargaff.