Q- Which of the following correctly describes pleiotropy?
A- Increased severity of a disease in succeeding generations
B- Not all individuals with mutant genotype show the same mutant phenotype
C- One gene contributes to multiple phenotypic effects
D- Phenotype is always the same among individuals having the same genotype
Q- Decreased production of which type of collagen may result in osteogenesis imperfecta?
A- Type I
B- Type II
C- Type III
D- Type IV
Q- What is the best treatment of gastroparesis in a diabetic patient?
A- Gastric resection
2 thoughts on “Repeated USMLE Questions Step 1- 344”
Thank you Dr. Yesuneh. I appreciate your feedback.