The sigma subunit of prokaryotic RNA polymerase: A. Binds the antibiotic rifampicin B. Is inhibited by tx-amanitin C. Specifically recognizes the promoter site D. ls part of the
All of the following development events are dependent on the production of maternal or fetal glucocorticoid, except: A. Induction of thymic involution B. Production of surfactant by type
Ovulation is primarily caused by preovulatory surge of : A. Estradiol B. Luteinizing hormone C. Progesterone D. Follicle stimulating hormone Correct answer : B. Luteinizing hormone Ovulation occurs
Testosterone production is mainly contributed by: A. Leydig cells B. Sertoli cells C. Seminiferous tubules D. Epididymis Correct answer : A. Leydig cells (factual question)
The procedure of choice for the evaluation of an aneurysm is: A. Ultrasonography B. Computed tomography C. Magnetic resonance imaging D. Arteriography Correct answer : D. Arteriography
Which is the objective sign of identifying pulmonary plethora in a chest radiograph? A. Diameter of the main pulmonary artery > 16 mm B. Diameter of the left
Which of the following causes rib-notching in a chest radiograph? A. Bidirectional Glenn shunt B. Modified Blalock Taussig shunt C. IVC occlusion D. Coarctation of aorta Correct answer
Which of the following anesthetic agents does not trigger malignant hyperthermia? A. Halothane B. Isoflurane C. Suxamethonium D. Thiopentone Correct answer : D. Thiopentone Anesthetic agents implicated in
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