Powerful tool for genetic engineering

Those protect themselves with a kind of 'immune system' which -- simply put -- consists of specific sequences in the genetic material of the bacteria and a suitable enzyme.

http://www.sciencedaily.com/releases/2013/11/131122112721.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily+%28ScienceDaily%3A+Latest+Science+News%29