(Single Best Answer) Question 161: Which of the following factor is responsible for deciding whether an immunoglobulin will remain membrane bound or get secreted ?
A) Allelic Exclusion B) Class switching C) Differential RNA Processing D) RNA Splicing Answer (Select an option above to get the answer):
(Single Best Answer) Question 162: A person working in abattoir with pustules on hand which turned into ulcer. Which of the following would help best in diagnosis ?
A) Acid Fast Stain B) Calcoflour white C) Carbol fuschin D) Polychrome Methylene Blue Answer (Select an option above to get the answer):
(Single Best Answer) Question 163: A young male patient presented with urethral discharge. On urine examination pus cells were found but no organisms. Which method would be best for cultures ?
A) Levinthal medium B) L.J.medium C) Mc coy cells D) Thayer martin Answer (Select an option above to get the answer):
(Single Best Answer) Question 164: A patient has Bilirubin =0.9 mg/dl, elevated SGPT & SGOT (~1500-1600 IU/L). HBsAg positive, Anti HBC IgM negative, Anti Hepatitis E IgM positive. Patient has ?
A) Chronic Hepatitis B infection with Hepatitis E superinfection B) Co-infection with Hepatitis B & Hepatitis E C) Hepatitis E Infection D) Infection with mutant Hepatitis B virus Answer (Select an option above to get the answer):
A) Alteration of target is the mechanism of resistance in some of the Pneumococcal strains B) Complete elimination of the target is the mechanism of resistance to Vancomycin in some the strains of enterococcus C) Most common mechanism is production of neutralizing substances D) Plasmid mediated antibiotic resistance is always transmitted vertically Answer (Select an option above to get the answer):
(Single Best Answer) Question 166: A patient presents with signs of pneumonia. The bacterium obtained from sputum was a gram positive cocci which showed alpha hemolysis on sheep agar. Which of the following test will help to confirm the diagnosis ?
A) Bacitracin sensitivity B) cAMP test C) Coagulase test D) Optochin sensitivity Answer (Select an option above to get the answer):
A) Hepatitis A virus B) Hepatitis B virus C) Hepatitis C virus D) Hepatitis E virus Answer (Select an option above to get the answer):
(Single Best Answer) Question 168: Which one of the following statements is not correct regarding the characteristics of HACEK organisms ?
A) Fastidious, fast-growing, gram positive bacteria whose growth requires an atmosphere of L-cysteine B) Known to cause severe systemic infections - most often bacterial endocarditis, which can develop on either native or prosthetic valves C) Normally reside in the oral cavity and has been associated with local infections in the mouth D) The cure rates for HACEK prosthetic-valve endocardtitis appears to be high Answer (Select an option above to get the answer):
A) It cannot cross blood brain barrier B) It is resistant to acetone C) It is easily killed by heat D) It is easily killed by T4 lymphocytes Answer (Select an option above to get the answer):