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Integration and Excision of a Plasmid

View the animation below, then complete the quiz to test your knowledge of the concept.






1Which of the following statements best describes plasmid excision?
A)breakdown of the plasmid
B)joining of the plasmid to the bacterial chromosome
C)removal of the plasmid from the bacterial chromosome
D)entry of the plasmid into the bacterial cell
E)exit of the plasmid from the bacterial cell



2Which of the following chromosomal regions can form the largest single transient loop? (Each letters represents a nucleotide sequence)
A)A B C D
B)B C A D D’ C’ B’
C)B C D B’ C’ D’
D)B C D A B’ C’ D’
E)B A B’ C D D’ C’



3In this animation plasmid excision occurs by ________ recombination.
A)homologous
B)non-homologous
C)heterologous
D)constitutive
E)integrative



4Plasmid integration into the bacterial genome typically occurs via a single cross-over between the two molecules.
A)True
B)False



5Excision of a plasmid from a bacterial genome occurs by only one mechanism.
A)True
B)False







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