Free AIDS and HIV Infection MCQs with Answers
49 AIDS and HIV Infection MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
HIV is a retrovirus that infects CD4 T lymphocytes and gradually weakens immune function, while AIDS is the advanced syndrome caused by severe immune deficiency. Coverage includes viral transmission, replication, disease progression, opportunistic infections, diagnosis, prevention and the difference between HIV infection and AIDS.
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49 questions · page 2 of 3
- A. 2001
- B. 1999
- C. 2005
- D. 2000
Explanation: Experimental administration of the HIV virus began in 2001 (BOOK INFORMATION.)
Correct answer: 2001- A. RBCs
- B. Platelets
- C. Leukocytes
- D. None of these
Explanation: The human immunodeficiency virus (HIV) infects leukocytes, also known as white blood cells.
Correct answer: Leukocytes- A. 1994
- B. 1984
- C. 1950
- D. 1920
Explanation: The AIDS virus (HIV) was discovered in 1984.
Correct answer: 1984- A. Human Immunodeficiency Virus
- B. Parvovirus
- C. Influenza Virus
- D. Paramyxovirus
Explanation: HIV (Human Immunodeficiency Virus) is a virus that attacks the body's immune system.
Correct answer: Human Immunodeficiency Virus- A. When it attacks the T cells
- B. When it replicates at maximum level
- C. When it destroys the body cells
- D. All of these
Explanation: AIDS is the late stage of HIV infection that occurs when the body's immune system is badly damaged because of the virus.
Correct answer: All of these- A. Replicase
- B. Reverse transcriptase
- C. Transcriptase
- D. Reverse replicase
Explanation: HIV is the causative agent of AIDS. It is a retrovirus. The enzymes needed for HIV replication are reverse transcriptase, integrase, and…
Correct answer: Reverse transcriptase- A. A person has AIDS
- B. A person having two positive tests for HIV
- C. A person can transmit the HIV
- D. A person is safe from AIDS
Explanation: Option: C Being HIV positive means there is evidence of presence of the HIV in the body and is a chance of transferring the virus through…
Correct answer: A person can transmit the HIV- A. 11
- B. 12
- C. 13
- D. 14
Explanation: Option B is correct because it is fact that HIV glycoprotein is composed of 12 subunits.
Correct answer: 12- A. Heterosexuals
- B. Homosexuals
- C. Both
- D. None
Explanation: The AIDS was reported by some physicians in early 1980's in young males having one or more of complex symptoms such as severe pneumonia, a…
Correct answer: Homosexuals- A. Sexual contact
- B. Blood
- C. Breast feeding
- D. All of the above
Explanation: HIV is a sexually transmitted disease that spreads to the blood, especially in trageting cells of the immune system known as T-cells thus…
Correct answer: All of the above- A. RNA polymerase I
- B. DNA polymerase II
- C. Reverse transcriptase I
- D. Reverse transcriptase
Explanation: HIV pathogenesis is a condition in which there is a competition between HIV replication and the immune responses of the patient.
Correct answer: Reverse transcriptase- A. Type of lymphocytes
- B. Present in blood and work as the defence system
- C. They kill the foreign invader
- D. All of these options are correct
Explanation: A type of white blood cell, T-cells are part of the immune system and develop from stem cells in the bone marrow.
Correct answer: All of these options are correct- A. The virus is highly mutated
- B. The vaccine is too expensive
- C. The virus can be controlled through change in hygiene
- D. None of these
Explanation: Option A is correct since HIV can be mutated very rapidly and numerous strains of HIV exist.
Correct answer: The virus is highly mutated- A. 1986
- B. 1980
- C. 1992
- D. 1970
Explanation: The term "HIV" (Human Immunodeficiency Virus) was coined in 1986. However, it's important to note that the virus itself was discovered…
Correct answer: 1986- A. Replicase
- B. Reverse transcriptase
- C. Transcriptase
- D. Reverse replicase
Explanation: The replication of the HIV (Human Immunodeficiency Virus) nucleic acid depends on the activity of the enzyme reverse transcriptase.
Correct answer: Reverse transcriptase- A. The virus is highly mutated.
- B. The vaccine is too expensive.
- C. The virus can be controlled through change in hygiene.
- D. None of these options is correct.
Explanation: Efforts to develop an HIV vaccine have been hampered by the genetic diversity of the virus itself.
Correct answer: The virus is highly mutated.- A. RNA polymerase I
- B. DNA polymerase II
- C. Reverse Transcriptase I
- D. Reverse Transcriptase
Explanation: When HIV RNA enters the cell it must be "reverse transcribed" into proviral DNA before it can be integrated into the DNA of the host cell.
Correct answer: Reverse Transcriptase- A. Simian Imunodeficiency Virus
- B. Silurian Imunodeficiency Virus
- C. Siberian Imunodeficiency Virus
- D. Both A and C
Explanation: Simian immunodeficiency viruses (SIV) are members of the Lentivirus genus of Retroviruses that infect nonhuman primates such as monkeys…
Correct answer: Simian Imunodeficiency Virus- A. Lymphocytes
- B. Cancer cells
- C. Stem cells
- D. T lymphocytes
Explanation: HIV primarily targets a type of cell in the immune system called the CD4+ T cell.
Correct answer: T lymphocytes- A. Safe and protected lifestyle
- B. Use of sterile injections and needles
- C. Use of available vaccines
- D. Safe blood transfusion methods
Explanation: There is no vaccine currently available to offer protection against AIDS caused by HIV.
Correct answer: Use of available vaccines