Frederick Griffith Was a Microbiologist Who Observed That

Multiple Choice

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.