Biology 3rd Edition by Peter Russell, Paul Hertz, Beverly McMillan

Exercise 1

In PCR, researchers use a heat-stable form of DNA polymerase from microorganisms that are able to grow in extremely high temperatures.Given what you learned in Chapter 3 about protein folding, and in Chapter 4 about the effects of temperature on enzymes, would you predict that the amino acids of heat-stable DNA polymerase enzymes would have evolved so they can form stronger chemical attractions with each other, or weaker chemical attractions? Explain your answer.