protein synthesis
D. Tetanus Toxin iv. Inactivities G proteins and blocks the signal
transduction

A:-A-iv, B-iii, C-ii, D-i
B:-A-ii, B-iv, C-i, D-iii
C:-A-iii, B-ii, C-i, D-iv
D:-A-i, B-ii, C-iii, D-iv
Correct Answer:- Option-A

Question41:-Hypersensitivity reactions can be classified into four types. Which of
the following types has correctly matched concerning its immune responses?
Type | - IgE mediated immediate reaction

Type Il - Immune complex-mediated reaction

Type Ill - Antibody-mediated cytotoxic reaction (IgG or IgM antibodies)

Type IV - Cell-mediated, delayed hypersensitivity reaction

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A:-All the types are correctly matched
B:-B and C only

C:-A and D only

D:-A and C only

Correct Answer:- Option-C

Question42:-Which of the following statement is false with respect to type Ill
Hypersensitivity reaction

A:-Antigen-antibody forms a large complex and is deposited in the nearby
tissue

B:-Penicillin can induce Type Ill hypersensitivity reaction alone

C:-Systematic Lupus Erythematosus is an example of type III hypersensitivity
reaction

D:-In type Ill hypersensitivity reaction Immune complex activate the
complement system and anaphylatoxins

Correct Answer:- Option-B

Question43:-Which of the following statements are not true about drug addiction?
A. — Drugs of abuse cause the brain's limbic system to release dopamine, the
neurotransmitter that produces feelings of pleasure

B. Drug tolerance makes people need more and more of the same drug because,
over time, drugs will cause the brain to produce less dopamine

C. Marijuana and heroin can activate neurons because their chemical structure
mimics that of a natural neurotransmitter in the body

D. Cocaine and amphetamines directly increase extracellular dopamine by
blocking the presynaptic dopamine transporter (DAT)

A:-B alone
B:-A alone
C:-B and C