据说早在古希腊时代,有人就提出先有鸡还是先有蛋的问题。由于蛋是鸡生的,鸡又是从蛋中孵化出来的,所以这个问题好像是一只怪圈,始终找不到头绪。几千年过去了,尽管至今仍然得不到正确答案,但问题却逐渐深化了。像有人就曾经提出过类似的问题: 先有种质还是先有体质? 先有胞核还是先有胞质? 从形式上看,这些问题好像各自不同,但明眼人可以发现,它们在一定程度上,都是同一问题的不同演化方式,同样也只是怪圈而已。本世纪50年代时,英国著名科学家贝尔诺在莫斯科大学作学术报告时,曾向苏联生化学家奥巴林提出了一个问题:核酸和蛋白质到底 It is said that as early as the ancient Greek era, some people raised the question of whether there was chicken or eggs first. Since the eggs are chickens and the chickens are hatched from the eggs, the problem seems to be a circle and it is impossible to find a clue. Thousands of years have passed, and although no correct answer has been obtained yet, the problem has gradually deepened. Someone once asked similar questions: Are there germplasm or constitution first? Are there first nucleus or first cytoplasm? Formally, these questions seem to be different, but discerning people can find that they have to some extent , are all different ways of evolution of the same issue, and they are just like a circle. In the 1950s, when the famous British scientist Bernard made an academic report at the Moscow University, he asked the Soviet biochemist Obelin a question: Nucleic acids and proteins in the end.