37. Which of the following is an important HIV-antigen in determining the used as an attachment for the of HIV infection? A. gp120 B. p17 C. p24 D. Pol gene 38. Which of the following bacterial infections is predominant in chronic HIV-infected patients or in AIDS? A. Candidiasis B. Pubic lice C. Scabies D. Tuberculosis 39. All the following are examples of clinically important specimens that can be taken from a HIV infected patient for the laboratory diagnosis of HIV infection, EXCEPT? A. Blood B. Genital secretions C. Saliva with the presence of blood D. Urine with no presence of blood
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The correct answer is A. gp120. The gp120 protein is an important HIV-antigen that is used by the virus to attach to the host cell. It is a key target for HIV vaccines and is used in diagnostic tests to determine the presence of HIV infection. Show more…
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Which of the following about HIV and its transmission is FALSE? Select one: a. HIV does not survive well outside of the body. b. HIV is not transmitted by common vehicles such as food and water, nor is it transmitted by insects. c. Free viral particles in infectious fluids are the only way HIV can be transmitted. d. The development of the HIV antibody test was an important first step in protecting the U.S. blood supply. e. The moist warm transitional zones of the body, which consist of intact mucous membrane, where HIV infection may take place, include the vagina, glans of the penis, eyes, throat, and rectum (anus).
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9. Each HIV particle possesses a ___________ on its surface, called gp120, that precisely binds to a protein, called CD4, that is found on the surfaces of the immune system cells called macrophages and T cells. A. nucleic acid B. phospholipid C. polysaccharide D. glycolipid E. glycoprotein 10. All of the following are diseases caused by viruses except A. strep throat. B. AIDS. C. polio. D. small pox. E. measles. 11. Phages are viruses that can infect A. humans. B. plants. C. insects. D. farm animals. E. bacteria. 12. A layer of lipoprotein and glycoprotein that covers the outer surface of some viruses is the A. capsid. B. casing. C. envelope. D. membrane. E. viroid. 13. Viruses that become established as stable parts of the host cell genome are called A. lethal. B. potent. C. temperate. D. virulent.
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