How does resistance to drugs spread in bacterial populations?
A. Exposure to drugs causes mutations in bacterial genes.
B. Horizontal gene transfer between bacteria spreads R (resistance) plasmids.
C. Genetic recombination during sexual reproduction.
D. Exposure to drugs induces immunity.
E. Exposure to drugs alters gene expression in bacteria.
Answer: B
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__________ individuals inherit three or more of each
type of chromosome from their parents. Fill in the blank(s) with the appropriate word(s).
Plasma
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