they're the most hospitable environment, but an organism isolated  from there has revolutionized molecular biology.
Hot springs in Yellowstone National Park don't sound like that  they're the most hospitable environment, but an organism isolated  from there has revolutionized molecular biology. In fact, this 75  degree Celsius home environment is what gives this organism its  helpful quality: heat-stable enzymes, in particular DNA polymerase.  For ten points, what is this bacterium which provided the first  enzyme to allow convenient polymerase chain reaction?
Hot springs in Yellowstone National Park don't sound like that  
{thermus aquaticus} (Prompt on: Taq or Taq polymerase)