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2 D 30191

An example of Type II hypersensitivity reaction is :

a) Hay fever.

b) Drug-induced haemolytic anaemia.

c) Farmer’s lung.

d) Serum sickness.
The autoimmune disease affecting the thyroid gland leading to hyperthyroidism is :

a) Myasthenia gravis. b) Grave's disease.

c) Hashimoto's thyroiditis. 9) IDDM.
The graft used for transplantation among the members of a given species is called ——————_.
Name one oncogenic DNA virus.
The human immunoglobulin isotype involved in Type I hypersensitivity reaction is

(12 x % = 6 marks)
Section B

Answer all questions.
Each question carries 2 marks.

What are the characteristics of haematopoietic stem cells ?
Differentiate primary and secondary lymphoid follicles.
Discuss the rote of skin as innate immune mechanism.

How adjuvants enhance the immunogenicity of an antigen ?
What are idiotypes ?

What is haemagglutination ?

What is hay fever ?

Define immune surveillance mechanism.

What is hyperacute rejection ?

What is myasthenia gravis ?

(10 x 2 = 20 marks)

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