The overuse of antibiotics has led to a form of antibiotic resistant tuberculosis.This has occurred as a result of:
A) directional selection within the bacterial population.
B) stabilizing selection within the bacterial population.
C) disruptive selection within the bacterial population.
D) a heterozygote advantage within the bacterial population.
E) balanced polymorphism within the bacterial population.

Question

Quizplus · Accepted Answer

Directional selection occurs when one extreme phenotype is favored over others, leading to a shift in the population's traits. In the case of antibiotic-resistant tuberculosis, bacteria that have mutations allowing them to survive antibiotic treatment are selected for, leading to an increase in the frequency of resistant strains.

The Overuse of Antibiotics Has Led to a Form of Antibiotic