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What are Viruses? (Grade 10)

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What are Viruses?

A virus exhibits all of the characteristics of life.
  1. True
  2. False
What is the protein coat called that covers the genetic material of a virus?
  1. a cell wall
  2. a cell membrane
  3. a capsid
  4. a dermal layer
What kind of genetic material is found in different types of viruses?
  1. DNA only
  2. RNA only
  3. Both DNA and RNA
  4. Nucleosomes
What is the enzyme called that allows viral genetic material to incorporate itself with the host's genetic material?
  1. DNA polymerase
  2. integrase
  3. cellulase
  4. RNA transcriptase
HIV is the virus that causes the AIDS disease. It is a special kind of virus because it replicates itself in a backwards fashion compared to other viruses. Why kind of virus is HIV considered because of this behavior?
  1. HIV is a retrovirus.
  2. HIV is a hanta virus.
  3. HIV is a temporovirus.
  4. HIV is a latent virus
How does a virus replicate itself by using the lytic cycle?

How does a virus replicate itself using the lysogenic cycle?

What is a prion?
  1. A prion is a cure for an infectious disease.
  2. A prion is a protein that directly causes a disease.
  3. A prion is a piece of DNA that is used to create more viruses.
  4. A prion is a covering that surrounds the genetic material of a virus.
A                              is an inoculation that causes the immune system to build up resistance to a disease.
Which of these is required for a bacteriophage to infect a bacterial cell?
  1. There needs to be a tolerable temperature in the environment.
  2. The bacterial cell needs to have the proper receptor proteins on its surface.
  3. The bacteriophage needs to have been created within the previous 24 hours.
  4. There needs to be adequate energy stored within the bacteriophage for it to inject its genetic material.
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