the rate of mutation on three e coli strains (a wild type, and two mutants) are compared. mutant a has a higher than normal methylase activity. mutant b has a lower than normal methylase activity. which of the following best compares the rate of mutations expected on these strands? group of answer choices mutant a would show a higher mutation rate than wildtype, while mutant b would have a lower mutation rate than wild type mutant b would show a higher mutation rate than wildtype, while mutant a would have a lower mutation rate than wild type both mutant a and b will have higher mutation rate than wild type mutation rate would be unaffected on these strands both mutant a and b will have lower mutation rate than wild type