WE wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure ... chains are held together by the purine and pyrimidine bases. The planes of the bases are ...

(Image: Public Domain) Types of Pyrimidines in Nucleic ... amino acids in plants, resulting in the selective elimination of weeds. Pyrimidine derivatives have been used in supramolecular chemistry to ...

If a nitrogenous base is composed of two of these rings, it is known as a purine, but if it is only composed of one ring, it is called a pyrimidine ... molecule, as it does in nucleic acids ...

This image illustrates the chemical structure of a purine molecule ... components of nucleic acids, which store and transmit genetic information in all living organisms. In DNA and RNA, purines pair ...