The significance of Fred Griffith’s 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.
Answer: b
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Fill in the blank(s) with correct word
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