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11. __________ is specifically able to have a long-term relationship with the host known as lysogeny.
A. Temperate virus
B. Adsorbed virus
C. RNA phage
D. DNA phage
12. Which of the following properties is due to lysogenic conversion by phages?
A. Toxin production in Corynebacterium diphtheriae
B. Toxin production in Clostridium botulinum types C and D
C. Antigenic variation in Salmonella anatum
D. All of the above
13. T-even phage binding to E. coli probably involves
A. electrostatic interaction
B. hydrophobic interaction
C. covalent bonds
D. all of these
14. The filamentous bacteriophage infects male E. coli cells by attaching to
A. lipopolysaccharide
B. the cell wall
C. the tip of the pilus
D. the cell membrane
15. A bacterial defense mechanism against bacteriophage is called
A. concatamerization
B. polymerization
C. restriction
D. lysogeny
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