Match each HIV-related structure or enzyme with its correct description. a) The HIV spikes b) The host cell receptor that HIV attaches to c) The kind of cell that HIV infects d) Makes viral DNA from the RNA genome e) Integrates viral DNA into the host cell genome f) Matures new HIV virions as they bud Match with: 1) Cytotoxic T cell 2) Protease 3) Reverse Transcriptase 4) T helper cell 5) Ligase 6) Restriction Endonuclease 7) CD4 8) Glycoproteins 9) Integrase 10) Natural killer cell 11) CD8 Which of the following is found on the surface of Natural Killer cells? a) Inhibition Receptor b) CD4 c) CD8 d) T cell receptor
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Step 1: The HIV spikes are matched with the glycoproteins. Show more…
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A) How does HIV bind to a host cell? The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane. CD4 binds to a co-receptor on the cell surface. CD4 binds to the viral capsid on the cell surface. The viral envelope proteins interact with gp120 on the host–cell membrane. B) Which of the following events stimulates the production of viral particles in a host cell? Activation of the host cell by cytokines, growth factors, or antigens. Processing of viral envelope proteins at the Golgi. Low-level transcription of viral DNA. Assembly of viral proteins and mRNA molecules. C) True or false? The human immunodeficiency virus (HIV) uses reverse transcriptase to make double-stranded RNA copies of its DNA genome.
Adi S.
Study the diagram showing the entry of HIV into the human body and the processes that are followed: HIV 'A' Plasma membrane HUMAN CELL 'B' Cytoplasm 'C' Viral DNA incorporates into host genome New viruses are produced Nucleus DNA (a) Name the human cell 'A' HIV enters into. (b) Mention the genetic material 'B' HIV releases into the cell. (c) Identify enzyme 'C'.
Anand J.
Discuss the HIV replication cycle and how mutation may affect our ability to fight off an HV infection, please address the following questions in your response: a. Describe the key events in the replication of HIV (from entry through exit). Please explain why it is known as a retrovirus. b. Include a discussion of two of the key viral enzymes discussed in lecture and their role in HIV replication. c. What type(s) of relationship(s) does HIV have with its host cell? Please write the terms for each relationship and briefly explain what this means. d. Based on your understanding of viral replication within a specific host and the cause of mutations, which type of mutation (spontaneous or induced) most likely affects HIV? Please explain why. e. How does the high mutation rate of HIV affect our ability to fight off an HIV infection? Please explain in terms of antigenic shift.
Suman K.
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