The fluctuation tests done by Luria and Delbruck showed that:
A)antibiotics induce the development of resistance in bacteria
B)the growth of bacteria fluctuates based on the concentration of antibiotics in the media
C)the concentration of antibiotics fluctuates in response to the number of bacteria in a sample
D)resistance to antibiotics occurs spontaneously in bacteria

Question

Quizplus · Accepted Answer

The fluctuation tests conducted by Luria and Delbruck in 1943 demonstrated that the development of resistance to antibiotics in bacteria occurs spontaneously, rather than as a response to exposure to antibiotics. They showed that mutations that confer resistance occur randomly and at a constant rate, regardless of whether or not antibiotics are present.

The Fluctuation Tests Done by Luria and Delbruck Showed That