Pertanyaan

Jakarta post : The research, published in the proceedings of the Royal Society B, has investigated the bacterium in eleven individuals ranging from as far back as the Bronze age up to the twentieth century. Samples have been taken from individuals in Europe and in both pre and post-colonial America. The oldest case study was that of an individual from 1200 BC, found in Burial cave in Mountainsell (Licidia, Catalonia). The study found that ancient genetic material from principle Bacterium, streptococcus mutant, cause dental carrier. The mutant has increased its genetic material change overtime. This is possibly due to the coincidence of dietary changes that are linked with the expansion of humanity. Similar study conducted by researchers from the University Autonma de Barcelona (UAB) and laboratoria Nasional de Genomica para la Bie diversided, Mexico, put the genetic material in order and found that genetic diversity has been produced, especially in the fragment of a gene that codifies a virulence factor known as dextranase. What is the first paragraph about