Biochemistry - Mock Test 76

Question 751

Antibody diversity arises from?

A) Gene amplification B) Gene re-arrangement C) Alternative splicing D) All of these

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Question 752

The alternate complement pathway doesn’t involve?

A) Antigen-antibody complex B) Complement 3 C) Factors B and D D) Membrane attack unit

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Question 753

Factors B and D are required in?

A) The classical pathway of complement fixation B) The alternate complement pathway C) Both A and B D) None of these

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Question 754

The component system forms a membrane attack complex made up of?

A) Complements 1q, 1r and 1s B) Complements 1, 2, 3 and 4 C) Complements 5b, 6, 7 and 8 D) Factors B and D

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Question 755

The components of complement system are activated by?

A) Microsomal hydroxylation B) Phosphorylation C) Glycosylation D) Proteloysis

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Question 756

C1 component of classical complement pathway is made up of?

A) Complements 1q and 1r B) Complements 1q and 1s C) Complements 1r and 1s D) Complements 1q, 1r and 1s

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Question 757

Complement system can be activated by binding of antigen to?

A) IgA B) IgD C) IgE D) IgM

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Question 758

The effector function of antibody is performed by?

A) Variable region of light chains B) Constant region of heavy chains C) Variable regions of light and heavy chains D) Constant regions of light and heavy chains

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Question 759

Recognition of antigen is the function of?

A) Variable region of light chains B) Variable regions of light and heavy chains C) Constant region of heavy chains D) Constant regions of light and heavy chains

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Question 760

The half-life of IgG is?

A) 2–3 days B) 5–6 days C) 8–10 days D) 20–25 days

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