KROK 1 2011 – Question 60 · KROK (Medicine) · Biology
One of the parents is suspected of having phenylketonuria recessive gene. What is the risk of giving birth to a child with inborn phenylketonuria?
- A. 75%
- B. 50%
- C. 100%
- D. 0%
- E. 25%
Hint
Consider the mode of inheritance, and count how many parents are actually described as carrying the mutant gene.
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