1. Pneumococci are also a leading cause of childhood ear infections.2. Griffith also induced some pneumococci to transform back and forth. 3. Pneumococci are typically gram-positive, cocci, seen in pairs or chains.4. There is controversy whether this was the same pneumococci or a mix of the two. 5. They differ from pneumococci in that they are optochin resistant and are not bile soluble. 6. In very high dilutions inhibits the growth of representatives of all four groups of pneumococci in vitro. 7. He was trying to distinguish between two kinds of organisms that cause pneumonia : pneumococci and Klebsiella pneumonia. 8. In the 1940s, experiments on capsular transformation by pneumococci first identified DNA as the material that carries genetic information 9. His research included studies on the transformation of pneumococci and on the biological variants of the streptococcus and other microorganisms. 10. On the following day, 29 November, the laboratory reported that two cultures of pneumococci had been cultivated from the specimen.
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