The vast majority of living organisms encode their genes in long strands of DNA (deoxyribonucleic acid). DNA consists of a chain made from four types of nucleotide subunits, each composed of: a five-carbon sugar (2'-deoxyribose), a phosphate group, and one of the four bases adenine, cytosine, guanine, and thymine.:2.1
What do the vast majority of living organisms encode their genes in? What does DNA consist of? What type of sugar composes part of the DNA molecule? What are the four bases used in nucleotide subunits? Besides the sugar and the four bases, what else does DNA consist of?