Fred Griffith's Experiment with Two Strains of Pneumonia-Causing Bacteria Demonstrated

Multiple Choice

Fred Griffith's experiment with two strains of pneumonia-causing bacteria demonstrated ____.

A) the semiconservative nature of DNA replication
B) that harmless bacterial cells can be permanently and heritably transformed into lethal bacterial cells
C) that each cell of a given species contains the same amount of DNA
D) that radioactively labeled bacteriophages transfer their DNA but not their protein coats to their bacterial host
E) that mice can change the hereditary content of bacteria