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Molecular assay reagents intended for use in identifying the inborn (i.e., congenital) presence of three copies of chromosome 9 in a patient sample, rather than the normal two (i.e., trisomy 9). Trisomy 9 is associated with eye anomalies (e.g., anophthalmia, microphthalmia), congenital heart disease, kidney anomalies, and growth and developmental disorders. Many individuals with trisomy 9 are mosaic, a condition in which normal and three-chromosome cells are present in the same person.
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