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AIIMS Solved Paper 2010 (Part 3 of 20)

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  1. Splicing activity is a function of:
    1. mRNA
    2. snRNA
    3. tRNA
    4. rRNA

    Answer: b

  2. After digestion by restriction endonucleases DNA strands can be joined again by:
    1. DNA polymerase
    2. DNA ligase
    3. DNA topoisomerase
    4. DNA gyrase

    Answer: b

  3. True about sickle cells are all, except:
    1. Single nucleotide change results in change of glutamine to valine
    2. Sticky patch is generated as a result of replacement of a non polar residue with a polar residue
    3. HbS confers resistance against malaria in heterozygotes
    4. RFLP results from a single base change

    Answer: b

  4. Infection of CNS spreads in inner ear through
    1. Cochlear aqueduct
    2. Endolymphatic sac
    3. Vestibular aqueduct
    4. Hyrtle fissure

    Answer: a

  5. Most common site for CSF rhinorrhoea is:
    1. Ethmoidal sinuses
    2. Maxillary sinuses
    3. Frontal sinuses
    4. Tegmen tympani

    Answer: a

  6. Endolymph in the inner ear:
    1. Is a filterate of blood serum
    2. Is secreted by stria vascularis
    3. Is secreted by basilar membrane
    4. Is secreted by hair cells

    Answer: b

  7. Bell՚s palsy patient comes on day 3. Treatment given would be:
    1. Intratympanic steroids
    2. Oral steroids + vitamin B
    3. Oral steroids + Acyclovir
    4. Vitamin B + vasodilators

    Answer: c

  8. Heat rupture is characterized by
    1. irregular margin
    2. Clotted blood
    3. regular margin
    4. clotted blood vessels

    Answer: d

  9. Motorcyclist fracture among the following is
    1. ring facture
    2. sutural separation
    3. comminuted fracture of vault of skull
    4. Fracture base of skull into anterior & posterior halves

    Answer: d

  10. A child brought with suspected ingestion, presented with dry mouth, dilated pupil, difficulty in swallowing, delirium, dry & warm skin, the substance is:
    1. Anti-cholinergic
    2. Sympathetic
    3. Cholinergic
    4. Alpha-blocker

    Answer: a

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