attached-X chromosome
attached-X chromosome
a single chromosome formed by the joining of two X-chromosomes at a common CENTROMERE. Such a chromosome acts as a single entity so that a carrier has a double X complement plus another sex chromosome, a form of NON-DISJUNCTION.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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