Study on the relationship between genetic code and amino acids in living body;

As the fundamental element of inheritance information, the uncovery of secret of genetic code must play important roles either in theoretical research or practical application for human to deeply understand the essence of life.

The coarseness method based on genetic code was proposed to avoid excessive coarseness.

By means of the correspondent reflex and two new operators introduced,a mathematical model of the genetic codons was formulated and a digital representation of the alkali bases and condons was derived in this paper.

It shows that the procedure of certainty and inheritance throughout the human life is controlled by the sixty four genetic codons,which is made up of the three choices among the four codes.

Synonymous codons ,which preference for A and T,were in the genomes of low grade organisms and organells.

The development of the concept of genes and their car rier s, up to the discovery of the DNA double helix and genetic codes, is reviewed fr om genetics to cytology, from biochemistry to molecular biology, while the role played by biologists, chemists and physicists is examined.

A systematic survey on coding capacity of genetic codons and their corresponding relationship with protein amino acids was carried out in this paper so as to explore the origination of genetic codes.