Course

Microbiology

Study Pack

Set 7 Bacteriophage

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Question 1

(Multiple Choice)

Free
The removal of the RNA primer leaves a gap in the newly synthesized viral genomic DNA.How does the bacteriophage T7 solve this problem?

A) It produces concatemers of the viral genome.
B) It circularizes the viral genome.
C) It uses a special DNA polymerase to fill in the gaps.
D) It leaves the RNA as part of the packaged viral genome.
E) It uses a protein as a primer instead of RNA.

Answer

Question 2

(Multiple Choice)

Free
Which of the following enzymes is NOT involved in replication of the bacteriophage T7 genome?

A) Single-Strand DNA binding protein
B) Lysozyme
C) DNA ligase
D) RNA polymease
E) RNA primase/helicase

Answer

Question 3

(Multiple Choice)

Free
One of the first proteins produced during the infection cycle of bacteriophage T7 inhibits the cellular enzymes EcoB and EcoK.Why is this important for the phage?

A) This prevents transcription of the cellular genes.
B) This allows transcription of the viral genes.
C) This prevents the viral proteins from being degraded.
D) This prevents the viral genome from being degraded.
E) This shuts down host cell genome replication.

Answer