Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency syndrome (AIDS) infects T-helper cells that have the CD4 receptor on their surface:gp120CD4 receptor-CXCR4 coreceptorRNA-RevorsetranscriptaseenzymeCore with -protein coatCapsomeres ofprotein coatEnvelopeT cllDNA(a) Structure of HIV(b) HIV infecting a T cell with CD4 receptors,and CXCR4 coreceptors which are distributedover the surface of the cellCopyright e 2001 Benjamin Cummings, an imprint of Addison Wesloy Longman, Inc.A. As shown in the above diagram, HIV attaches to a susceptible cell by a binding interaction between the gp120 protein on the virus protein and the CD4 and CXCR4 receptors on the surface of the T-helper cell. What will be the next event in the virus life cycle?B. One mechanism for transmission of HIV is direct contact during sexual activity. What is the other common mechanism of transmission?

Next step after attachment (binding) to the CD4 and CXCR4 receptors on the TH cell.

Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency syndrome (AIDS) infects T-helper cells that have the CD4 receptor on their surface: gp120 CD4 receptor CXCR4 coreceptor RNA- -Reverse transcriptase erzyme Core with protein coat Capsomeres of protein cont Envelope Toel DNA (b) HIV infecting a T coll with CD4 receptors. and CXCRA coroceptors which are distributod (a) Structure of HIV over the surface of the cell Copyright 2001 Benjamin Cummings an imprint ot Addson Wesley Longman, Inc. A As shown in the above diagram, HIV attaches to a susceptible cell by a binding interaction between the gp120 protein on the virus protein and the CD4 and CXCR4 receptors on the surface of the T-helper cell. What will be the next event in the virus life cycle? B. One mechanism for transmission of HIV is direct contact during sexual activity. What is the other common mechanism of transmission?

Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency syndrome (AIDS) infects T-helper cells that have the CD4 receptor on their surface: gp120 CD4 receptor CXCR4 coreceptor RNA- -Reverse transcriptase erzyme Core with protein coat Capsomeres of protein cont Envelope Toel DNA (b) HIV infecting a T coll with CD4 receptors. and CXCRA coroceptors which are distributod (a) Structure of HIV over the surface of the cell Copyright 2001 Benjamin Cummings an imprint ot Addson Wesley Longman, Inc. A As shown in the above diagram, HIV attaches to a susceptible cell by a binding interaction between the gp120 protein on the virus protein and the CD4 and CXCR4 receptors on the surface of the T-helper cell. What will be the next event in the virus life cycle? B. One mechanism for transmission of HIV is direct contact during sexual activity. What is the other common mechanism of transmission?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter17: Genes And The Immune System

Section: Chapter Questions

Problem 13QP: The Adaptive Immune Response Is a Specific Defense Against Infection In cystic fibrosis gene...

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