Competitive Exams: Medical Science MCQs (Practice-Test 59 of 135)

    • Assertion (A): Tetracyclins inhibit protein synthesis.
    • Reason (R): Tetracyclins inhibit aminoacyl t-RNA binding to ribosomes.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Papanicolaou staining is the best method for routine cytodiagnostic studies.
    • Reason (R): Papanicolaou staining on air dried smear provides excellent nuclear details.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Hydatid disease of the liver is caused by the larval form of Taenia solium.
    • Reason (R): Hydatid disease is diagnosed by the Casoni's test.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): In a child, fracture of upper femur leads to life time pain and disability.
    • Reason (R): Fracture of upper femur involves the epiphyseal plate.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): The prognosis in a patient with inflammatory carcinoma of breast is good.
    • Reason (R): All modalities of treatment should be used in patients with inflammatory carcinoma of breast.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Amoxycilin plays an important role in treatment of peptic ulcer.
    • Reason (R): Helicobacter pylori is the most important etiological factor in peptic ulcer disease.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Quac-Stick is a good screening tool for protein energy malnutrition in under five children.
    • Reason (R): Quac-Stick can accurately diagnose Lathyrism even during ‘No-Stick’ stage.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Amoebic liver abscess is most commonly localized to posterior portion of the right lobe of liver.
    • Reason (R): This portion of liver receives most of the blood due to streaming effect of portal vein flow.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Obesity is not a type of malnutrition.
    • Reason (R): Obesity can be diagnosed by calculating the Body Mass Index of the individual.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): In advanced cardiac life support, early defibrillation is critical and should be performed without delay.
    • Reason (R): Early defibrillation rectifies ventricular fibrillation and pulseless ventricular tachycardia to normal cardiac rhythm, as they form the most common cause of cardiac arrest.
    1. Both A and R are true and R is the correct explanation of A

    2. Both A and R are true but R is NOT the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

  1. Consider the following statements: The parafollicular cells of the thyroid gland

    1. secrete Calcitonin which suppresses the calcium level

    2. have polyhedral cells lining the luminal surface of the follicular cells.

    3. belong the ‘APUD’ system

    4. induce bone formation by osteoblasts

    Which of these statements are correct?

    1. 1, 2, 3 and 4

    2. 1 and 4

    3. 2 and 3

    4. 1 and 3

  2. Right suprarenal vein ends in

    1. Right renal vein

    2. Inferior vena cava

    3. Azygos vein

    4. Hemi Azygos vein

  3. Maturation of the lungs is divided into four periods. Which one of the following pairs is correctly matched?

      • Pseudoglandular period
      • 5 to 17 weeks
      • Terminal sac period
      • 16 to 25 weeks
      • Alveolar period
      • 24 weeks to birth
      • Canalicular period
      • Late fetal period to childhood
  4. Which of the following statements is not true regarding the ear ossicles?

    1. Malleus is laterally placed

    2. Stapes is of adult size at birth

    3. Incudomalleolar joint is a saddle joint

    4. Incus develops from second pharyngeal arch

  5. Consider the following statements associated with the intra pulmonary bronchi:

    1. They are lined by pseudo stratified columnar ciliated epithelium

    2. Irregular plates of hyaline cartilage support their walls

    3. Smooth muscle fibres are found in their lamina propria

    Which of the above statements are correct?

    1. 1, 2 and 3

    2. 1 and 2

    3. 1 and 3

    4. 2 and 3