In 1928 Frederick Griffith discovered that Streptococcus pneumonia caused pneumonia in mice. In his experiments, mice were injected with different strains of treated and untreated bacteria. Which of the following is not likely to have occurred in the series of experiments by Griffith?

Question

Quizplus · Accepted Answer

In Griffith's experiments, the heat-killed S strain could transform the living R strain into a pathogenic form, causing the mice to die. However, living S strain is already pathogenic, so adding heat-killed R strain would not change the outcome, and the mice would still die.

In 1928 Frederick Griffith Discovered That Streptococcus Pneumonia Caused Pneumonia