In the 1940’s the attention of geneticists was surprisingly focused on the Escherichia coli, colon bacterium. E. coli offered many advantages such as genetically being simpler, they are easily broken open and bacterial cells have little internal structure. For the fact that the E. coli populations can double in number in twenty minutes, viruses could be grown in enormous numbers in a short period of time. Viruses fall into the world between living and not …showed first 75 words of 752 total…

…showed last 75 words of 752 total…such as R6, endows its host with resistance to sex antibiotics. Once and a while a physician will treat bacterial infection with antibiotics, later finding that the same disease is back but won’t be cured with the same antibiotics. The drug industry keeps trying to keep up with the challenge of developing new or altered antibiotics, but some times the bacteria is faster than us. ------------------------------------------------------------------------ **Bibliography** Biology The Science of Life, Wallace edition 3