Tag: immunity related disorders and problems
Questions Related to immunity related disorders and problems
The human immuno deficiency virus (HIV) is a living entity because it can
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Undergoes reproduction in the host cell
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Disturb host cell respiration
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Excrete in human serum
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Move from one cell to another
At which stage of HIV infection does on usually show symptoms of AIDS?
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When the infecting retrovirus enters host cells
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When vital DNA is produced by reverse transcriptase
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When HIV replicates rapidly in helper T-lymphocytes and damage large number of these
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Within $15$ days of sexual contact with an infected person
AIDS is caused by
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Corynebacterium diphtheriae
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Human immuno deficiency virus
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Rubella virus
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Varicella virus
Corynebacterium diphtheriae is a virus causing diphtheria.
Rubella virus causes measles.
Varicella virus causes chickenpox.
Human immunodeficiency virus infection is a disease of human immune system, which causes acquired immune deficiency syndrome. It is transmitted through sexual contact, breastfeeding and blood transfusion.
Thus, the correct answer is option B.
AIDS days is on?
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$1$st November
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$10$ December
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$1$st December
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$4$th June
- World AIDS Day, designated on 1 December every year since 1988.
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It is dedicated to raise awareness, educate and improve the understanding of HIV as a global public health problem.
In India, AIDS was reported in
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1932
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1986
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1990
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1992
The first AIDS case in India was detected in Solomon, a professor of microbiology in Government general hospital in Chennai in 1986 and since then HIV infection has been reported in all states and union territories.
Therefore, the correct answer is option B.
World AIDS Day is celebrated on
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1 December
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29 December
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3 October
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22 March
1 December is World AIDS Day, 29 December is Biological Diversity Day, 3 October is World Animal Day and 22 March is World Water Day.
AIDS can be transmitted through
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Blood transfusion
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Hand shake
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Courtship
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All of the above
HIV (Human Immunodeficiency Virus) is the causative agent of AIDS. HIV is spread from an infected person to another person through direct contact with some of the body’s fluids like mother milk, blood, lymph and semen through sexual intercourse or by sharing the drug equipment like needles or from mother to child during childbirth or breastfeeding or via blood transfusion.
Thus, the correct answer is option A.
Who discovered ''reverse transcription''?
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Watson and Crick
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Beadle and Tatum
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Temin and Baltimore
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Khorana
Reverse transcriptase is an enzyme used to produced complementary strand of RNA, called as cDNA. This process occurs in RNA viruses. It was discovered by Howard Temin at the University of Wisconsin–Madison in RSV virions and independently isolated by David Baltimore in 1970 at MIT from RNA tumour viruses such as R-MLV and RSV. In 1975 Nobel Prize was awarded in Physiology or Medicine to both of them along with Renato Dulbecco.
Number of AIDS patients believed to be present in India is currently
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20,000
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2,00,000
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20,00,000
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3,000,000
AIDS was first reported in U.S.A in
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1981
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1971
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1984
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1986
- AIDS(acquired immunodeficiency syndrome) is caused by the HIV virus. It breaks down the body immune system, leaving the patient vulnerable to a host of life-threatening opportunistic infections.
- The first AIDS cases were reported in the United States in June 1981.
- Hence AIDS was first reported in U.S.A in 1981.
- So, the correct answer is '1981'.