29. The correct term for the transfer of genetic material between bacteria in direct physical contact is
A.conjugation
B.transformation
C.replication
D.transduction

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30. Plasmid that carries genes encoding enzymes, which degrade substances such as aromatic compounds, pesticides or sugar are
A.F factors
B.metabolic plasmid
C.virulence plasmid
D.none of these

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31. R factors involved in plant-microbe interactions are
A.plant proteins
B.bacterial proteins
C.essential for transfer of DNA to plant cells
D.also called opines

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32. Which of the following is used by microbial genetisists as a tool?
A.Bacteriophage
B.Plasmids
C.Transposable elements
D.All of these

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33. Which of the following type of recombination does not require homologous sequences and is utilized by mobile genetic elements that move about chromosomes?
A.Mutagenic recombimation
B.Site-specific recombination
C.Replicative recombination
D.General recombination

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34. Which of the following term describes the relationship between a virus and host where no new viral particles are produced and the viral genome is replicated along with host chromosome?
A.Lysogeny
B.Lysis
C.Transformation
D.Conjugation

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35. Inverted repeat sequences at each end and a gene encoding transposase is contained in which of the following transposable element?
A.Composite transposon
B.Insertion element
C.Virus
D.Plasmid

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