FREE BACTERIOLOGY AND STUDY GAMES ABOUT 175

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FREE BACTERIOLOGY AND STUDY GAMES ABOUT 175

VIRUS EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -49 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: Reason why it is harder to make antiviral drugs vs. antibacterial drugs

Answer:

Antiviral drugs often target Host Cell

Question 2: Viroid's are

Answer:

In plants , are 1/10 th the size of normal virus, lack a capsid and are just a naked RNA

Question 3: Transformation implies that what has happened to the cell

Answer:

Viral Transformation implies that the Host Cell is changed

Question 4: Positive Sense RNA

Answer:

Single Stranded RNA that is ready for immediate translation

Question 5: Purpose of the genes in the virus

Answer:

Only genes that are required to invade the host and redirect the cells activity

Question 6: Cultivating viruses in a living embryo or animal is called

Answer:

In vivo

Question 7: DNA and RNA structures in the virus

Answer:

Can be Single Stranded or Double Stranded and can be Linear or Circular

Question 8: Name for fully formed virus, the entire virus particle

Answer:

Virion

Question 9: Obligate Intracellular Parasites definition

Answer:

Virus can not multiple outside of a Host.Question 10: Name of Enzyme carried by virus that produces DNA from their own RNA

Answer:

Reverse Transcriptase as used with Retroviruses

Question 11: The three classifications of a virus are

Answer:

Chemical composition, structure, genetic make up

Question 12: 3 reasons for cultivating viruses

Answer:

To isolate viruses from clinical specimens, Make vaccines, Research biology of viruses

Question 13: Prion is

Answer:

Protein fiber that causes disease to the central N.S. brain Question 14: Name for Virus induced damage to the host cell that causes changes to the host cell

Answer:

Cytopathic Effects

Question 15: Lysogenic bacteria

Answer:

Viral DNA inserted into host DNA and bacteria continues to grow with an altered DNA

Question 16: Term for viral damage that causes host cells to fuse together

Answer:

Syncytia or Giant Cell

Question 17: Subunits that make up the Capsid

Answer:

Capsomeres

Question 18: Protein and Enzyme synthesis abilities

Answer:

Can NOT produce proteins or enzymes but may have enzymes

Question 19: 2 shapes for the Capsomeres are

Answer:

Helix and Icosahedral

Question 20: Viruses that undergo Lysogeny are considered what

Answer:

Temperate Phage

Question 21: When a host cell maintains a relationship with the virus that can last weeks or years is

Answer:

Persistent Infection Question 22: When a virus permanently changes the genetic make up of the host cell causing it to become caner is

Answer:

Oncogenic and the virus is called Oncoviruses

Question 23: Negative Sense RNA

Answer:

Single Stranded RNA that is NOT ready for immediate translation

Question 24: Characteristics of the Capsid

Answer:

Composed entirely of Protein, Icosahedral or Helix shaped, Protect genetic material, Composed of Capsomeres and May bind to surface of Host Cell.Question 25: When the animal viral DNA is incorpo into the host cell DNA and is later transcribed to produce more viral RNA ; Dormant

Answer:

Provirus; like the Shingles

Question 26: Temperate Phage

Answer:

Bacteriophages that can choose between which pathway to take either the Lytic or the Lysogenic ( active or dormant)

Question 27: Viruses that attack Bacteria are called

Answer:

Bacteriophages, Every bacteria is affected by these, mostly dsDNA; robot looking