Book Viewer

Short Contents | Full Contents | Other books @ NCBI

| Modern Genetic Analysis Chapter 2. The Structure of Genes and Genomes The Nature of DNA Figure 2-1. Chemical structure of the four nucleotides (two with purine bases and two with pyrim-idine bases) that are the fundamental building blocks of DNA. The sugar is called deoxyribose because it is a variation of a common sugar, ribose, which has one more oxygen atom.

© 1999 by W. H. Freeman and Company. All rights reserved.