Microbial Recombination and Gene Transfer – Section 1

26. The plasmid which makes the host more pathogenic is

A. F factors
B. Metabolic plasmid
C. Virulence plasmid
D. None of these

Correct Answer: C. Virulence plasmid

27. The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will

A. have Px but not the rest of the X coding region
B. have the promoter of lacZ or some other reporter gene
C. allow monitoring the expression of all genes with a promoter similar in sequence to Px
D. give the same information as from a microarray

Correct Answer: A. have Px but not the rest of the X coding region

28. The transducing particles carry only specific portions of the bacterial genome in which of the following transduction?

A. Specialized transduction
B. General transduction
C. Abortive transduction
D. None of these

Correct Answer: A. Specialized transduction

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

Correct Answer: A. conjugation

30. A 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

Correct Answer: B. metabolic plasmid

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