Ribo-This is short for ribose and it is a pentose sugar. Contrast this with the sugar group in DNA which is dexoyribose. Nucleic-Refers to the fact that it originates in the nucleus.
DNA is a double helix formed by base pairs attached to a sugar-phosphate backbone. DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms.
Structure of DNA. The molecular structure of DNA forms a double helix with a backbone of each strand of the helix consisting of a repeating ...sugar-phosphate-sugar-phosphate... polymer; the sugar is deoxyribose.tructure of DNA. The molecular structure of DNA forms a double helix with a backbone of each strand of the helix consisting of a repeating ...sugar-phosphate-sugar-phosphate... polymer; the sugar is deoxyribose.