Microbiology Exam 3
Cancel
-
+
Some questions for Microbiology 130 Exam 3
- 1.Which of these is not a means of identifying viruses?
- A.
PCR
- B.
By their cytopathic effects
- C.
Ribotyping
- D.
Serological testing
- 2.The lysogenic cycle is different from the lytic cycle in that the _____.
- A.
The phage DNA is incorporated into host cell DNA
- B.
The cell bursts during release
- C.
Phages contain RNA genomes
- D.
There is no latent period
- 3.Which of these is a method of growing animal viruses in the laboratory?
- A.
In live animals
- B.
In embryonated eggs
- C.
In cell culture
- D.
All of the above
- 4.Which bacteriophage life cycle is responsible for transduction?
- A.
Lytic cycle
- B.
Lysogenic cycle
- 5.The spectrum of cells that a virus can infect is called the ____.
- A.
Infection target
- B.
Infection host
- C.
Host range
- D.
Host spectrum
- 6.A bacterium that exhibits new properties or abilities due to the presence of a prophage is said to have undergone ______.
- A.
Phage conversion
- B.
Genetic conversion
- C.
Transduction
- D.
Transduction
- 7.An oncogene is _____.
- A.
A part of the viral genome
- B.
A part of the human genome
- C.
Involved in suppressing cancers
- D.
Important in viral infection
- 8.Which of these is an infectious protein?
- A.
Virion
- B.
Viroid
- C.
Proteoid
- D.
Prion
- 9.Bacteriophages and animal viruses do not differ significantly in which of the following steps?
- A.
Adsorption
- B.
Penetration
- C.
Uncoating
- D.
Biosynthesis
- 10.Which structure of prokaryotic cells are used for phylogeny?
- A.
Ribosomes
- B.
Plasma membranes
- C.
Flagella
- D.
Mitochondria
- 11.Viruses that can cause cancers are called ______.
- A.
Cancer viruses
- B.
Transforming viruses
- C.
DNA viruses
- D.
Oncogenic viruses
- 12.A virion is _____.
- A.
A complete, infectious virus particle
- B.
A naked, infectious piece of RNA
- C.
A capsid without a nucleic acid
- D.
A provirus
- 13.Viruses have a protein coat called a _____.
- A.
Capsid
- B.
Capsomere
- C.
Virion
- D.
Prion
- 14.Which of these are naked pieces of infectious RNA?
- A.
Virions
- B.
Prions
- C.
Viroids
- D.
Phages
- 15.Which of these would an enveloped virus use for attachment?
- A.
Capsid
- B.
Tail fibers
- C.
Spikes
- D.
Flagella
- 16.Most viruses have a broad host range.
- A.
True
- B.
False
- 17.When a virus enters a cell it must release its nucleic acid into the host cell. This is called ____.
- A.
Nucleic acid release
- B.
Maturation
- C.
Biosynthesis
- D.
Uncoating
- 18.Some viruses, such as Human Herpes Virus 1, infect a cell without causing symptoms; these are called _____.
- A.
Latent viruses
- B.
Lytic viruses
- C.
Lysogenic viruses
- D.
Persistent viruses
- 19.Which of the following is not based on nucleic-acid hybridization?
- A.
DNA chip
- B.
FISH
- C.
Western blotting
- D.
Southern blotting
Back to top
