Exam (elaborations)
BIOL 215 Certification Exam Questions and CORRECT Answers
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Describe the work of Fred Griffith- studied 2 strains of strep 1) S strain- appeared smooth and was virulent 2) R strain- 'rough' in appearance and avirulent - There are several variants of the strains (IIS,IIIS,IIR,IIIR) - IIS can mutate to IIR, but never to IIIR, IIIS mutated to IIIR but nev...
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