Frederick Griffith was a microbiologist who observed that
A) DNA contains nitrogen and phosphorus.
B) proteases disrupt transformation from nonvirulence to virulence.
C) DNA from heat-killed viruses transforms virulent viruses.
D) nonvirulent bacteria become virulent when mixed with heat-killed virulent bacteria.
E) the X-ray diffraction pattern of DNA is highly symmetrical.

Question

Quizplus · Accepted Answer

Frederick Griffith's famous experiment involved mixing nonvirulent bacteria with heat-killed virulent bacteria and observing that the nonvirulent bacteria became virulent. This transformation from nonvirulence to virulence was the result of the exchange of genetic material, specifically DNA, between the two types of bacteria.

Frederick Griffith Was a Microbiologist Who Observed That