quiz #9 - Quiz #9. BIO201B 2010 1. In the Griffith...

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Quiz #9. BIO201B 2010 1. In the Griffith experiments with smooth and rough strains of bacteria, the conclusion that was best supported by their results was: A. Removal of the encapsulation from non-virulent strains turns them into killers B. DNA viruses contain the DNA that causes pneumonia C. DNA transcription was necessary to convert a bacterial strain from virulent to non- virulent D. The genotype of a virulent strain of bacteria cannot be changed because DNA is (and must be) permanent and unchangeable E. A heat-stable transformation factor from one strain of bacteria can change the phenotype of another strain 2. What was one of the main points of the Avery experiments (where they tested heat-denatured extracts of pneumococcus bacteria)? A. If you destroy the DNA in the extract, it cannot make the rough cells virulent B. Destroying RNA prevents transformation C. Proteases will break down the capsid of rough cells, making them susceptible to be killed by the mouse and the mouse will live
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quiz #9 - Quiz #9. BIO201B 2010 1. In the Griffith...

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