Monozygous female twins discordant for a pattern of X chromosome inactivation as a model for study on X-linked intellectual traits
Kovaleva, N.V.; Ivanov, I.A.
Tsitologiia i Genetika 39(6): 66-70
2005
ISSN/ISBN: 0564-3783 PMID: 16396323 Document Number: 589688
Ring the last decades, numerous genes for general cognitive ability were identified on human X-chromosome. They were discovered primarily because of X-linked mutations causing nonspecific mental retardation in males. Evidence for imprinted loci on the X chromosome affecting neurodevelopment was found in studies on 45,X females. Investigation of transmission of X-linked traits in normal individuals might further contribute to problem of shaping human being's mind ability. We suggest monozygous female twins discordant for a parent-of-origin of the X chromosome inactivation to be a proper subject for such explorations.