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Molecular assay reagents intended for use in identifying the inborn (i.e., congenital) presence of three copies of chromosome 13 in a patient sample (e.g., fetal cells from amniotic fluid), rather than the normal two (i.e., trisomy 13). Trisomy 13 causes Patau\'s syndrome. Molecular tests for Patau\'s syndrome are typically used for prenatal diagnosis in pregnant women.
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