Comparison of selected genomes

TAELE 21.2 Comparison of Selected Genomes Approximate Size oFGenome (in million Approximate [megabase, Mb] or billion [gigabase, Gb] Percentage of Genes Organism (Scientific Name) bases) (Date Completed) Number ofGenes Shared with Humans Bacterium (Escherichia ca/i) 4.6 Mb (1997) 4403 not determined Chicken (Gal/usgallus) 1 GD (2004) ~20,000—23,000 60% Dog (Cam's familiar/'5) 2.5 G 3 (2003) ~18,400 75% Chimpanzee (Pan troglodytes) ~3 GD (2005) ~20,000-24,000 98% Fruit fly (Drasophi/a melanagaster) 165 M 3 (2000) ~13,600 50% Human (Homo mpiens) 3.1 Go (2004) ~20,000 100% Mouse (Mus muscu/us) ~2.5 Gb (2002) ~30,000 80% Pig (511$ scrafa) ~3 GD (2012) 21,640 84% Rat (Rattus norvegicus) ~2.75 G: (2004) ~22,000 80% Rhesus macaque (Macaca mulatta) 287 Gb (2007) ~20,000 93% Rice (Oryza sativa) 389 M 3 (2005) ~41,000 not determined Roundworm (Caenorhabditis elegans) 97 M 3 (1998) 19,099 40% Sea urchin (Strong/acentrotus purpumtus) 814 M 3 (2006) ~23,500 60% Thale cress (plant) (Arabidopsis tha/iana) 140 M 3 (2000) ~27,500 not determined Yeast (Saccharumyces Eerew'siae) 12 M 3 (1996) ~5700 30% Adapted from Palladmo, M. A. Understanding the Human Cenomerjett, 2nd ed. Benjamin Cummmgs, zoos. Note: Blllion bp (gigabase, Cb)