Horizontal gene transfer also plays a role in the spread of virulence factors, such as exotoxins and exoenzymes, amongst bacteria. A prime example concerning the spread of exotoxins is the adaptive evolution of Shiga toxins in E. coli through horizontal gene transfer via transduction with Shigella species of bacteria.
The brothers grew up on a succession of Oklahoma and Kansas homesteads during... On this day in 1911, President Ronald Wilson Reagan is born in Tampico, Illinois. Ronald Reagan, the 40th president of the United States, served for two terms from 1981 to 1989.
Ronald Reagan Biography - 1911-1980. Feb. 6, 1911 Ronald Wilson Reagan was born in Tampico, Ill. to Nelle Wilson and John Edward (Jack) Reagan. The Reagans had one previous son, Neil (Moon) Reagan. 1920 The Reagans moved to a succession of rural northern Illinois towns until they settled in Dixon, Illinois, the place Reagan considers his hometown. 1926 Beginning in 1926, Reagan was employed as a lifeguard at Lowell Park in Dixon. He was credited with saving 77 lives during the 7 summers he worked there. 1928 Reagan graduated from Dixon High School. He served as student body president and participated in football, basketball, track, and school plays.