Bacteriophage Lambda - Molecular Virology | Biology+

Course

Microbiology

Study Pack

Set 1: Introduction to Virology

Set 2: Virus Structure and Assembly

Set 3: Virus Classification: The World of Viruses

Set 4: Virus Entry

Set 5: Single-Stranded RNA Bacteriophages

Set 6: Microviruses

Set 7: Bacteriophage

Set 8: Bacteriophage Lambda

Set 9: Viruses of Archaea

Set 10: Cucumber Mosaic Virus

Set 11: Picornaviruses

Set 12: Flaviviruses

Set 13: Togaviruses

Set 14: Coronaviruses

Set 15: Paramyxo-Viruses and Rhabdoviruses

Set 16: Filovirouses

Set 17: Bunyaviruses

Set 18: Influenza Viruses

Set 19: Reoviruses

Set 20: Parvoviruses

Set 21: Polyomaviruses

Set 22: Papillomaviruses

Set 23: Adenoviruses

Set 24: Herpesviruses

Set 25: Baculoviruses

Set 26: Poxviruses

Set 27: Viruses of Algae and Mimivirus

Set 28: Retroviruses

Set 29: Human Immunodeficiency

Set 30: Hepadnaviruses

Set 31: Viroids and Hepatitis Delta Virus

Set 33: Intrinsic Cellular Defenses Against Virus Infection

Set 34: Innate and Adaptive Immune Responses to Virus Infection

Set 35: Antiviral Vaccines

Set 36: Antiviral Chemotherapy

Set 37: Eukaryotic Virus Vectors

Set 8 Bacteriophage Lambda

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Set 8 Bacteriophage Lambda

(Multiple Choice)

Free

Why is binding of the λ phage cI repressor to O_R1 and O_R2 necessary for transcription from P_RM?

A) It facilitates binding of the RNA polymerase to PRM.
B) It blocks transcription from P_L which competes for the RNA polymerase.
C) It prevents transcription of an antisense RNA.
D) It stabilizes the transcript from P_RM.
E) It allows read through a transcriptional terminator.

Answer

(Multiple Choice)

Free

The λphage will lysogenize the host cell if which of the following proteins is produced in sufficient levels during infection?

A) N
B) CI
C) Q
D) Integrase
E) Cro

Answer

(Multiple Choice)

Free

The R and S proteins from λ phage can form complexes called holin and spanin.Which of the following describes the process that these complexes participate in?

A) Assembly of the virion.
B) Replication of the viral genome.
C) Packaging of the viral genome into the head
D) Excision of the viral genome from the host chromosome.
E) Lysis of the host cell to release virions.

Answer