TABLE 17. 1 The Genetic Material of Representative Viruses and bacteria Nucleic acid Organism or bacteria ( un 0X74 0050×025 uses Tobacco mosaic virus SSDD 030802 Lambda phage 10 T2 phas 520 00×0.10 Bacteria Haemophilus infuenzae DNA DS 8320 100030 Escherichia coli DNA DS 2003050 *SS=single-stranded DS =double-stranded