Fred Griffith's experiment,in which he used two strains of Streptococcus pneumoniae,demonstrated that _____.
A) pathogenic bacteria function differently in mice than in other organisms
B) harmless bacteria can become transformed into disease-causing bacteria by a bacteria transformation factor
C) pure DNA extracted from disease-causing bacteria transformed harmless strains into killer strains
D) dead cells lose their genetic information
E) DNA is a protein rich in nitrogen and phosphorus

Question

Fred Griffith's experiment,in which he used two strains of Streptococcus pneumoniae,demonstrated that _____.  
A) pathogenic bacteria function differently in mice than in other organisms
B) harmless bacteria can become transformed into disease-causing bacteria by a bacteria transformation factor
C) pure DNA extracted from disease-causing bacteria transformed harmless strains into killer strains
D) dead cells lose their genetic information
E) DNA is a protein rich in nitrogen and phosphorus

Quizplus · Accepted Answer

The Answer is B

Fred Griffith's Experiment,in Which He Used Two Strains of Streptococcus