Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 18, Problem 15MC
Summary Introduction
Introduction:
Human immune virus (HIV) specifically targets and destroy the T-cells and causes AIDS. The HIV attaches specifically through the CD4 receptors present on the T-cells, and gain entry into cells, where they replicate and stay as a latent virus. They get integrated with cell’s genome and it is passed to all the daughter cells.
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Chapter 18 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 18 - Prob. 1CCSCh. 18 - Prob. 1TMWCh. 18 - Prob. 2TMWCh. 18 - A Case of AIDS A 25-year-old man is admitted to...Ch. 18 - Prob. 3TMWCh. 18 - The immunoglobulin class that mediates type I...Ch. 18 - The major inflammatory mediator released by...Ch. 18 - Hemolytic disease of the new born is caused by...Ch. 18 - Farmers lung is a hypersensitivity pneumonitis...Ch. 18 - A positive tuberculin skin test indicates that a...
Ch. 18 - Which of the following is an autoimmune disease?...Ch. 18 - When a surgeon conducts a cardiac bypass operation...Ch. 18 - A deficiency of both B cells and T cells is most...Ch. 18 - Prob. 9MCCh. 18 - What do medical personnel administer to counteract...Ch. 18 - Which of the following is not typically part of an...Ch. 18 - Prob. 12MCCh. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - Prob. 15MCCh. 18 - Prob. 1MTFCh. 18 - Prob. 2MTFCh. 18 - Prob. 3MTFCh. 18 - Prob. 4MTFCh. 18 - Modified True/False 5. ___ Graft-versus-host...Ch. 18 - Prob. 1MCh. 18 - Prob. 1SACh. 18 - Prob. 2SACh. 18 - Prob. 3SACh. 18 - Contrast autografts, isografts, allografts, and...Ch. 18 - Prob. 5SACh. 18 - Prob. 1VICh. 18 - Prob. 2VICh. 18 - Prob. 3VICh. 18 - Prob. 1CTCh. 18 - Why cant physicians use skin tests similar to the...Ch. 18 - Prob. 3CTCh. 18 - Prob. 4CTCh. 18 - What types of illnesses cause death in patients...Ch. 18 - Prob. 6CTCh. 18 - Why do the blisters of positive tuberculin...Ch. 18 - Retroviruses such as HIV use RNA as a primer for...Ch. 18 - Prob. 9CTCh. 18 - Reverse transcriptase is notoriously sloppy in...Ch. 18 - A patient arrives at the doctors office with a...Ch. 18 - Prob. 12CTCh. 18 - Prob. 13CTCh. 18 - Prob. 1CM
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- In order for a +ssRNA virus to undergo replication, it first needs to ________. a. translate -ssRNA from viral DNA. b. transcribe a copy of -ssRNA c. have RNA polymerase make copies directly from +ssRNA d. transcribe +ssRNA from host DNA e. translate viral proteins from the +ssRNA strand directlyarrow_forwardWhich of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its genome? A. RNA dependent RNA polymerase B. RNA dependent DNA polymerase C. Reverse transcriptase D. DNA Polymerase I E. DNA dependent RNA polymerasearrow_forward95) The herpesviruses: a. Can have an abortive infection b. Have three round of protein translation in its replication cycles, one before genome replication and two after genome replication c. Can have a persistent infection d. the CD4 is the major receptorarrow_forward
- To infect their specific host cells, viruses go through these chronological steps EXCEPT a. Release of progeny viruses b. Absorption and penetration of the viral particles c. Uncoating of the nucleic acid of the viral particles d. Synthesis and assembly of viral particle componentsarrow_forwardIf the HIV did not have a reverse transcriptase enzyme, then which of the following would apply? Select one: a. The virus can make use of the reverse transcriptase enzyme from the host cell to convert its RNA into DNA b. Viral particles will be produced without reverse transcriptase enzyme since the original HIV is an RNA virus and needs to assemble RNA ant coat proteins together c. The virus will manufacture its proteins from its RNA using translation and ribosomes from host cell d. Provirus will not be formed and assembly of viral particles will never occur e. The virus will not be able to recognise the host cell and therefore entry into the cell is blockedarrow_forwardViruses in the Herpesviridae family are double-stranded DNA enveloped viruses. Specifically the virus Varicella can cause chickenpox, which when in adults is called ___________. This can exist as a ____________ in the DNA of host cells. Select one: a.herpes/ Provirus b.measles/ Provirus c.Shingles / Prophage d.None of the Above e.Shingles / Provirusarrow_forward
- Which of the following events occurs in the lytic cycle of bacteriophage T4 infection but NOT in the lysogenic cycle? a.both digestion of host DNA and viral proteins synthesis b.attachment c.viral protein synthesis d.digestion of host DNA e.entryarrow_forwardAfter attachment and entry, the next step of viral lifecycle is to A.translate viral proteins B. assembly new viral particles C. replicate the genome D. release new virionsarrow_forwardSymptoms of viral infections are caused by: (choose all that apply) A. Actions of the virus that result in cell damage or death B. Actions of the immune system that result in cell damage or death C. Changes in a cell's genetics that result in cancerarrow_forward
- Viruses code for their own independent protein synthesis. A. True B. Falsearrow_forwardPeople with the CCR5Δ32 mutation of a T-cell surface protein can be exposed to some strains of HIV-1 without becoming sick. What step of the virus life cycle is likely to be inhibited with this mutation? a. Release b. Reverse transcription c. Uncoating d. Attachmentarrow_forwardWhich of the following statements are correct for DNA viruses? Mark all that apply. A.The genome consists of dsRNA B. A provirus stage occurs during viral replication C. The genome consists of two identical strands of DNA D. Replication requires reverse transcriptase Replication requires DNA polymerase E.The viral DNA must enter the nucleus for its replication F. Uncoating must occur for the virus to be replicated G.The viral genome acts as a template for production of viral proteinsarrow_forward
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