In a study of genetic variation of the Graceland gene, a researcher finds that there are two alleles in a population. In a large
sample (500 individuals), the frequency of heterozygotes is 0.63. Is the population in Hardy-Weinberg equilibrium. You come back after 500 generations have past and observe that the frequency of heterozygotes is still 0.63. You conclude that the population is experiencing selection. Which type of selection is the population most likely experiencing?
If a major change in pH occurred, the protease enzymes would stop functioning or function very slowly, assuming the original pH was the most optimal pH for them.
