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

question 37

Multiple Choice

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

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