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5.1 Health and communicable disease

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Question 8

A virus can follow a lytic pathway or a lysogenic pathway in its host cells.

A scientist observes animal cells infected with a virus. The cells make viral DNA and viral proteins. Complete virus particles assemble inside the cells, which then rupture.

Which statement describes this pathway?

[1]
A

the lysogenic pathway, because viral DNA remains inside intact host cells as they divide

B

the lytic pathway, because the host cells are destroyed as the new viruses are released

C

the lysogenic pathway, because viral genes take control of the host cell's ribosomes

D

the lytic pathway, because the virus uses its own ribosomes to make the viral proteins

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5.1 Health and communicable disease Questions

  1. GCSE
  2. /Biology
  3. /5.1 Health and communicable disease

112 exam-style questions on Edexcel GCSE Biology 5.1 Health and communicable disease, covering 5.1.1 Communicable and non-communicable diseases, 5.1.2 Disease susceptibility interactions, 5.1.3 Pathogens as disease-causing organisms, 5.1.4 Common infections, 5.1.5 Spread and prevention of pathogens, 5.1.6 Lifecycle of a virus, and 5.1.7 Spread and prevention of STIs. Each one has a worked solution and a mark scheme showing where the marks go.

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