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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

Group A carbohydrate of Str. pyogenes cross reacts with human_________________?
A Synovial fluid
B Myocardium
C Cardiac valves
D Vascular intima
Correct Answer: Cardiac valves
The most frequently encountered clostridial species in gas gangrene is______________?
A Clostridium botulinum
B Clostridium welchii
C Clostridium tetani
D Clostridium difficile
Correct Answer: Clostridium welchii
In small intestine, cholera toxin acts by______________?
A ADP – ribosylation of the G regulatory protein
B Inhibition of adenyl cyclase
C Activation of GTPase
D Active absorption of NaCI
Correct Answer: ADP – ribosylation of the G regulatory protein
Phospholipid used to investigate syphilis by the reagin test is________________?
A Cardiolipin
B Plasminogen
C Palmityl lecithin
D Serine
Correct Answer: Cardiolipin
Staphylococcal food poisoning includes the following features_______________?
A Incubation period of 24 hours
B Requires immediate antibiotics
C Common with dairy products
D Heat labile enterotoxin
Correct Answer: Common with dairy products
Fimbriae are demonstrated by ___________________?
A Culture
B Gram stain
C Biochemical reaction
D Haemagglutination test
Correct Answer: Haemagglutination test
The mechanism of genetic transfer where a phage serves as a vehicle is_______________?
A Transduction
B Translation
C Lysogeny
D Conjugation
Correct Answer: Lysogeny
cAMP reaction is shown by which streptococci ?
A Group A
B Group B
C Group C
D Group D
Correct Answer: Group B
Cough plate method is used to identify________________?
A Y. pestis
B Pertussis
C Mycoplasma
D M-Tuberculosis
Correct Answer: Pertussis
Test for differentiating virulent form non-virulent tubercular bacilli_____________?
A Aryl sulphatase test
B Niacin test
C Neutral red test
D Catalase peroxidase test
Correct Answer: Neutral red test
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