Volpe's Understanding Evolution 7th Edition by Peter Rosenbaum

تمرين 5

Mutations for antibiotic resistance that occur in bacteria are
A) induced in direct response to exposure to the antibiotics
B) random and then are then selected for due to the presence of antibiotics in the environment.
C) more commonly today than in the past.
D) selectively neutral in an environment where antibiotics are abundant.
E) examples of disruptive selection.