title: Variants of chromosome 9 in phenotypically normal individuals.
abstract: The human chromosome 9 displays the highest degree of structural variability. Four different types of variants are described including pericentric inversion, extra G-positive band in the q arm, additional G-positive band in the p arm and duplication of band 9q21-q22. It is important to demonstrate inheritance from a phenotypically normal individual in order to differentiate between a variant chromosome and an abnormal chromosome.
authors.affiliation: Department of Pathology, Singapore General Hospital, Singapore.
authors.forename: K F
authors.initials: KF
authors.lastname: Cheong
authors.forename: L A
authors.initials: LA
authors.lastname: Knight
authors.forename: M
authors.initials: M
authors.lastname: Tan
authors.forename: I S
authors.initials: IS
authors.lastname: Ng
mesh_terms: D001399:Azure Stains; D002869:Chromosome Aberrations; D007446:Chromosome Inversion; D002899:Chromosomes, Human, Pair 9; D006801:Humans; D005810:Multigene Family; D010641:Phenotype
chemical_list: D001399:Azure Stains