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Q- A 12-year-old female is evaluated for enlarged phallus at puberty. Examination reveals no breast development, a blind vaginal pouch and no uterus. Laboratory tests show normal levels of testosterone and estrogen and very low levels of dihydrotestosterone (DHT). What is the most likely diagnosis?
A- Female pseudohermaphrodite
B- Male pseudohermaphrodite
C- True hermaphrodite
D- Turner's syndrome

Q- Which of the following is the enzyme responsible for conversion of testosterone into dihydrotestosterone (DHT)?
A- 17 alpha-hydroxylase
B- 3-beta-hydroxylase
C- 5-alpha-reductase
D- Aromatase

Answer and Explanation
 
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