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Human Health and Disease

Short Answer Type

51. List two main immuno-deficiency disorders and mention their cause.

The two immuno-deficiency disorders are-:
1. Severe combined immuno-deficiency (SCID). It is caused due genetic mutation which is characterized by absence of T-cells and B-cells.

2. Acquired immuno-deficiency syndrome (AIDS). It caused due to Human immunodeficiency virus (HIV).

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Long Answer Type

52. Give full name of human disease caused by HIV in which body loses its general immunity towards infections. How is this disease transmitted ?

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Short Answer Type

53. Differentiate immuno deficiency and autoimmune diseases.

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54. What are symptoms of allergic reactions ?

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Long Answer Type

55. What are vaccines ? Explain the mechanism.

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Short Answer Type

56. Write the preference of order for organ transplantation -sibling, identical twin, unrelated donorand parent.

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Long Answer Type

57. Who are at higher risk of getting HIV infection?

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Short Answer Type

58. List a few features that characterise AIDS.

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One Word Answers

59. Which test is done to detect HIV infection ?

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Short Answer Type

60. Name the test for detection of
(i) AIDS
(ii) Typhoid.

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