KROK 1 2007 – Question 80 · KROK (Medicine) · Biology
Autopsy of a newborn boy revealed polydactylia, microcephalia, cheiloschisis and uranoschisis as well as hypertrophy of parenchimatous organs. These defects correspond with the description of Patau’s syndrome. What is the most probable cause of this pathology?
- A. Trisomy of the 13th chromosome
- B. Partial monosomy
- C. Nondisjunction of sex chromosomes
- D. Trisomy of the 18th chromosome
- E. Trisomy of the 21st chromosome
Hint
Recall the autosomal trisomy whose newborns show multiple malformations, including extra digits, a small head and cleft lip and palate, and usually die very early.
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