Repeated USMLE Questions Step 1- 337

Q- Which of the following organisms is associated with toxic shock syndrome due to exotoxin A?

A- Clostridium perfringens

B- Staphylococcus aureus

C- Streptococcus pyogenes

D- Vibrio cholera

C- Streptococcus pyogenes



Q- Which one of the following types of necrosis is most likely associated with myocardial infarction?

A- Caseous

B- Coagulative

C- Fibrinoid

D- Liquefactive

B- Coagulative



Q- Which of the following conditions is caused by a frameshift mutation?

A- Becker muscular dystrophy

B- Duchenne muscular dystrophy

C- Hereditary nonpolyposis colorectal cancer

D- Sickle cell disease

B- Duchenne muscular dystrophy



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