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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 that covers the genetic material of a virus?
  1. cell wall
  2. cell membrane
  3. capsid
  4. dermal layer
What kind of genetic material is found in different types of viruses?
  1. DNA only
  2. RNA only
  3. DNA and RNA
  4. nucleosomes
What is the enzyme 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 disease AIDS. It is a special kind of virus because it replicates itself in a backward fashion compared to other viruses. What kind of virus is HIV because of this behavior?
  1. retrovirus
  2. hantavirus
  3. temporal virus
  4. 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 cure for an infectious disease
  2. a protein that directly causes a disease
  3. a piece of DNA that is used to create more viruses
  4. 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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