The process by which Pneumococcus transfers DNA between living type RII and heat-killed type SIII cells is known as __________
A) transformation
B) replication
C) transduction
D) ligation
E) conjugation
A
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If a bacterium carrying a plasmid that confers resistance to ampicillin is placed into medium without ampicillin, it may
A) gain resistance to other antibiotics. B) transfer resistance to other cultures in the laboratory. C) undergo a reversion mutation. D) lose the plasmid because there is no selection for ampicillin resistance.
Which class includes slugs and snails?
a. Cephalopoda b. Gastropoda c. Scaphopoda d. Bivalvia
If you were a researcher trying to design a pesticide that would not accumulate by biological magnification, what two properties should the pesticide have?
What will be an ideal response?
If wolves were now removed from Yellowstone National Park
A) elk populations would increase. B) deer populations would decrease. C) the vegetation would remain unchanged. D) vegetation would increase, providing shelter for smaller animals.