RESISTANCE GENES PRE-DATE ANTIBIOTICS by "millions of years" according to a report in ScienceNOW 25 Sep 2002. One reason antibiotic resistance spreads so rapidly is that bacteria carry resistance genes on small loops of DNA called plasmids, which they can pass to other bacteria. Many evolutionists have claimed that resistance genes moved from the main chromosome in bacteria onto plasmids in response to humans using antibiotics. Molecular evolutionists at University of Rochester, New York studied different bacteria that carry penicillin resistance genes in order to work out when the gene was moved off the bacteria's main chromosomes and onto the plasmids. They came to the conclusion that the genes "were mobilised from the chromosome to plasmids on at least two independent occasions that occurred millions of years ago."
ED. COM. Note that this study assumes antibiotic resistance genes already existed irrespective of when they were moved around the bacterial genomes. The scientists who did this study are therefore admitting antibiotic resistance is an inbuilt feature of bacteria and has not evolved since humans have been using antibiotics. In fact, scientists gave up believing antibiotic resistance arose by mutation 30 years ago when plasmids were first discovered and shown to be the means of rapid spread of antibiotic resistance. Why then is antibiotic resistance still used in text books as evidence of evolution?