11. Which type of plasmid can exist with or without being integrated into the host’s chromosome?
A. Medisome
B. Lysosome
C. Lysogen
D. Episome
12. The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid
A. transfers both strands of the plasmid DNA
B. carries genes encoding the mating apparatus
C. transfers antibiotic resistance genes
D. usually has a transposon inserted into it
13. Which of the following is the cause for drug resistance in tuberculosis?
A. Mutation
B. Transduction
C. Transformation
D. Conjugation
14. The transposase gene encodes an enzyme that facilitates
A. viral replication within a genome
B. general recombination
C. site-specific integration of transposable elements
D. none of the above
15. The term used for plasmids possessing both RTF and r determinants is
A. non-self-transmissible plasmids
B. non-conjugative plasmids
C. conjugative plasmids
D. none of the above
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