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 COUNT 5
QSN1 What do the vast majority of living organisms encode their genes in? ANS1 long strands of DNA (deoxyribonucleic acid) QSN2 What does DNA consist of? ANS2 a chain made from four types of nucleotide subunits QSN3 What type of sugar composes part of the DNA molecule? ANS3 a five-carbon sugar (2'-deoxyribose) QSN4 What are the four bases used in nucleotide subunits? ANS4 adenine, cytosine, guanine, and thymine QSN5 Besides the sugar and the four bases, what else does DNA consist of? ANS5 a phosphate group