Biology Forums - Study Force

The significance of Fred Griffiths experiment in
  which he used two strains of Streptococcus
  pneumoniae is that
  a. pathogenic bacteria function differently in mice
  than in other organisms.
  b. it demonstrated that harmless bacteria can
  become transformed into disease-causing
  bacteria by some association with pathogenic
  bacteria.
  c. it established that pure DNA extracted from
  disease-causing bacteria transformed harmless
  strains into killer strains.
  d. dead cells lose their genetic information.
  e. the genetic material is DNA, not protein.

Question 2

Fred Griffiths experiments with two strains of
  Streptococcus pneumoniae
  a. resulted in a vaccine against bacterial
  pneumonia.
  b. demonstrated that rough (R) bacteria cause
  pneumonia.
  c. provided evidence that genetic material from one
  bacterial strain can be transferred to that of
  another strain.
  d. demonstrated that mice can transform harmless
  bacteria into pathogenic bacteria.
  e. demonstrated that a harmless, smooth bacterial
  strain can be transformed into a lethal, rough
  bacterial strain.

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