A 34-year-old member asked:
How come all down syndrome children have the same facial features?
2 doctor answers • 7 doctors weighed in
Pediatrics 46 years experience
Chromosome influence: The size & shape of the skull & facial features of Down syndrome patients is heavily influenced bu the effect of the extra chromosome present in every cell of the body.The same goes for eyes, hands & feet all of which require a lot of decoding during formation to produce the structures. Many other chromosome defects produce some common features to those born with the abnormality.
5k viewsReviewed >2 years ago
Pediatric Neurology 51 years experience
Chromosomes abnormal: Down syndrome is a disorder of trisomy (3) number 21 chromosomes. As a result the facial abnormality is shared by everyone with the same extra chromosome.
2.7k viewsReviewed >2 years ago
Last updated Mar 23, 2018
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