KROK 1 2011 – Question 138 · KROK (Medicine) · Biology
Examination of a 12-year-old boy with developmental lag revealed achondroplasia: disproportional constitution with evident shortening of upper and lower limbs as a result of growth disorder of epiphyseal cartilages of long tubal bones. This disease is:
- A. Inherited, sex-linked
- B. Inherited, recessive
- C. Acquired
- D. Congenital
- E. Inherited, dominant
Hint
Think about the gene involved in this skeletal dysplasia and how many mutant copies of it are enough to produce the phenotype.
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