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. 1982;61(3):267-8.
doi: 10.1007/BF00296458.

Dentition of a 48,XYY,+21 male

Dentition of a 48,XYY,+21 male

G Townsend. Hum Genet. 1982.

Abstract

Although the dentition of a 48,XYY,+21 male showed some typical features of Down's syndrome, metric analysis indicated a marked increase in tooth size particularly for early developing teeth. The extra Y chromosome can influence phenotypic expression, overcoming the superimposed effects of the additional 21 chromosome.

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