A bacterial cell in which the F plasmid is integrated into the chromosome is known as
A) an F- cell.
B) an F+ cell.
C) an F' cell.
D) an Hfr cell.
E) None of the above.
Answer: D
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If drugs are less effective when taken together than when each is taken separately, they are called
A. energetic. B. antagonistic. C. additive. D. synergistic.
Do mutations require very high rates before they can affect genetic diversity?
a. yes b. no
Which of the following is a trait that evolved in ALL land plants?
A. protection of the embryo B. seeds C. apical growth D. vascular tissue
Which behavioral response to the threat of predation is most likely to be selected for in a species that uses camouflage for protection from predators?
A) Behavior that mimics the behavior of the predator B) A quick escape response C) Sudden display to startle the predator D) Motionless behavior E) Cooperative behavior