Answer: R5, majority
( Thr AIDS virus rapidly mutates to the use the R5 co receptors. They multiply instantly.)
Answer: Both A and C
( Viral fusion, integration, infection, HIV antibody production)
21. HIV infects CD4+ T-cells using one of two co-receptors. AIDS progression occurs rapidly after the...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...