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 <answer>adenine, cytosine, guanine, and thymine</answer>.:2.1
What are the four bases used in nucleotide subunits?
adenine, cytosine, guanine, and thymine