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Medical Term:

sex chromosome imbalance


any abnormal pattern of sex chromosomes; XXY in men with seminiferous tubule dysgenesis, XO in women with Turner syndrome; rarer patterns of imbalance are XXX, XXXY, and XYY.

See Also: isochromosome

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.