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27.

28.

29.

30.

Pain of heart is most often experienced as pain of arm, back and neck. This
is attributed to

i) Dermatomal principle
ii) According to convergence-projection theory

iii) Prolonged visceral stimulus facilitates somatic nociceptors, which in turn
stimulate secondary neurons and brain is unable to determine whether
the pain comes from heart or from area of referral.

A) iii only B) i and ii only

C) All the above D) None of the above

Aminopterin used during the production of hybridoma cells
A) Blocks de novo synthesis of DNA

B) Prevents the growth of B cells

C) Prevents the growth of myeloma cells

D) Blocks synthesis of Ig by B cells

Which of the following is a mismatching pair ?
i) IgG : can cross placenta
ii) IgE : binds to mast cells

A

)
)
iii) IgA : binds to macrophages
) 18೧6 ॥ B) ii and iii
)

C) iii only D) i only

Which of the following is true about vagus nerve ?
A) Eighth cranial nerve, sensory in nature, arises from forebrain
B) Tenth cranial nerve, mixed in nature, arise from hindbrain
C) Tenth cranial nerve, sensory in nature, arise from forebrain

)

D) Tenth cranial nerve, motor in nature, arise from midbrain

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