Which of the following best shows how primary structure relates to protein function?
a. high temperatures cause proteins to denature.
b. changing one amino acid in the protein hemoglobin causes sickle-cell anemia.
c. proteins are sensitive to changes in ph.
d. the shape and chemistry of an enzyme's active site determine its function.

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.