Practice Quiz

ADA NBDE National Board Dental Part II

Category - NBDE II

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The mutation of 5q32 gene manifests as:
  1. Down’s syndrome
  2. Trisomy 21
  3. Trisomy 18
  4. Treacher Collins syndrome
Explanation
Answer: D - The mutation of 5q32 gene manifests as Treacher Collins syndrome; also called mandibulofacial dysostosis. There are craniofacial deformities at the midface, such as notched lower eyelids with downward slant, malformed or absent ears, micrognathia, and underdeveloped zygoma.
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