FREE AND STUDY GAMES ABOUT MCB CHAP 13 EXAM

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FREE AND STUDY GAMES ABOUT MCB CHAP 13 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Plaque is

Answer:

A clear area against a confluent "lawn" of bacteria

Question 2: A persistent infection is one

Answer:

In which the disease process occurs gradually over a long period.

Question 3: Evidence that virus cause cancer

Answer:

Cancer that developed in chickens following injection of cell-free filtrates.

Question 4: Lysogeny

Answer:

Phage DNA is incorporated into host cell DNA.

Question 5: PrP^Sc

Answer:

Is necessary for replication of a prion.

Question 6: Varicellavirus infection

Answer:

Is a persistent infection

Question 7: FALSE

Answer:

viral spikes only found in non-enveloped viruses; biochemical test for virus classification; culture media not for viruses

Question 8: How are viruses =/ bacteria?

Answer:

Viruses are not composed of cells.

Question 9: Virus infect an animal cell

Answer:

Due to presence of receptor sites on the cell membrane

Question 10: A viroid is a(n)

Answer:

Infectious piece of RNA without a capsid

Question 11: Cold Sores are

Answer:

A latent viral infection

Question 12: Prion

Answer:

An infectious protein

Question 13: "Release"

Answer:

An envelope is acquired during which of the following steps?

Question 14: In Viruses but never in bacteria

Answer:

May contain an RNA genome.

Question 15: Bacteriophage =/ animal virus

Answer:

Because only bacteriophage replication involves injection of naked nucleic acid into the host cell.

Question 16: Continuous cell lines =/ primary cell lines

Answer:

Continuous cell lines can be maintained through an indefinite number of generations.

Question 17: Togavirus

Answer:

Assume you have isolated an unknown virus. This virus has a single, positive sense strand of RNA, and possesses an envelope. To which group does it most likely belong.

Question 18: Budding is

Answer:

The mechanism whereby an enveloped virus leaves a host cell

Question 19: Step 1 in biosynthesis w/ virus

Answer:

Synthesis of double-stranded RNA from an RNA template

Question 20: Bacteriophages & Animal Viruses

Answer:

Are similar in that they undergo biosynthesis