KROK 1 2013 – Question 108 · KROK (Medicine) · Biology
An 18-year-old male has been diagnosed with Marfan syndrome. Examination revealed a developmental disorder of connective tissue and eye lens structure, abnormalities of the cardiovascular system, arachnodactylia. What genetic phenomenon has caused the development of this disease?
- A. Complementarity
- B. Codominance
- C. Incomplete dominance
- D. Multiple allelism
- E. Pleiotropy
Hint
Ask yourself why defects of the eye, the skeleton and the heart appear together in one patient, and what this implies about the link between the underlying gene and the traits.
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