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MICB 212 - HIV (Chapter 10-12) Practice Questions and Answers $11.49   Add to cart

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MICB 212 - HIV (Chapter 10-12) Practice Questions and Answers

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MICB 212 - HIV (Chapter 10-12) Practice Questions and Answers What subgroup of retroviruses are HIV classified under? - ANSWERLentiviruses - which have a long interval between initial infection and serious onset clinical symptoms HIV-1 - ANSWER- Evolved from SIV transmitted to humans from chimp...

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  • October 30, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Practice Tests 2024
  • Practice Tests 2024
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MICB 212 - HIV (Chapter 10-12) Practice

Questions and Answers


What subgroup of retroviruses are HIV classified under? - ANSWER✔✔Lentiviruses - which have a long

interval between initial infection and serious onset clinical symptoms


HIV-1 - ANSWER✔✔- Evolved from SIV transmitted to humans from chimpanzees


- primarily circulating North America


HIV general characteristics - ANSWER✔✔Damage person's immune system by destroying CD4 T cells


HIV-2 - ANSWER✔✔- Evolved from sooty mangabey SIV virus


- Isolated from AIDS patients in Africa and is associated with opportunistic infection and AIDS


Four main clades (groups) of HIV-1 (origins of each and most common?) - ANSWER✔✔- M, N, O, P


- Differen transmission events of SIV to humans


- HIV-1 group M viruses predominate are responsible for the majority of AIDS/HIV cases




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FIRST PUBLISH OCTOBER 2024




Define Acquired Immunodeficiency Syndrome (AIDS) - ANSWER✔✔- Disease that is no hereditary but

develop after from contact with HIV


- Causes weakening of immune system


- Final stage of HIV infection


What is required for the diagnoses of AIDS? - ANSWER✔✔- Patient has one or more opportunistic

infections (infection that takes advantage of damaged immune cells)


- CD4 T Cell count is less than 200 per micro litre of blood


HIV general structure - ANSWER✔✔- Enveloped virus


- Genome is packaged in the cored of the viral particle


- Two complete (+) RNA strands


- Each strand has a 5' cap and 3' PolyA Tail


Organization of HIV genome - ANSWER✔✔- Repeat sequence + primer binding site (PBS)


- gag


- pol


- regulatory genes


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