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Sex Chromosome Variations in School‐Age Children
Author(s) -
Cohen Felissa L.,
Durham Jerry Dean
Publication year - 1985
Publication title -
journal of school health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.851
H-Index - 86
eISSN - 1746-1561
pISSN - 0022-4391
DOI - 10.1111/j.1746-1561.1985.tb04089.x
Subject(s) - polysomy , chromosome , klinefelter syndrome , y chromosome , psychology , x chromosome , genetics , developmental psychology , biology , medicine , pediatrics , gene , fluorescence in situ hybridization
Current evidence suggests that some school‐age children are born with a sex chromosome variation. Large chromosome surveys of newborns indicate that 0.5% to 0.6% have chromosome errors, with sex chromosome variations accounting for 35% of them. The four most frequently occurring sex chromosome variations are Turner Syndrome (45, X), Klinefelter Syndrome (47, XXY), Polysomy X or Triple X (47, XXX), and Polysomy Y or XYY (47, XYY). Though many individuals with sex chromosome variations can live functionally normal lives, others may experience developmental, physical, psychological, behavioral, and learning impairments. New information has dispelled myths and biases previously associated with these disorders. By becoming knowledgeable about sex chromosome variations and their effects upon children, school health personnel can assist affected children, their families, and teachers.