Bacteriophages – Section 1

1. The process by which phage reproduction is initiated in lysogenized culture is called

A. infection
B. integration
C. repression
D. induction

Correct Answer: D. induction

2. Area of lysis on a bacterial lawn culture produced by a phage is known as

A. pock
B. plaque
C. pox
D. all of these

Correct Answer: B. plaque

3. The procapsid is assembled with the aid of __________ proteins.

A. ladder
B. framing
C. scaffolding
D. form

Correct Answer: C. scaffolding

4. Which of the following is/are synthesized from late mRNA?

A. Phage structural proteins
B. Proteins that help with phage assembly without becoming part of the virion structure
C. Proteins involved in cell lysis and phage release
D. All of the above

Correct Answer: D. All of the above

5. Which capsid symmetry is exhibited by most of the phages?

A. Helical
B. Icosahedral
C. Complex
D. None of these

Correct Answer: B. Icosahedral

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