Results 311 to 320 of about 861,603 (331)
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Mouse X chromosome

Mammalian Genome, 1997
Overall, the probe map fromDXWas70 toAmg encompasses 72 cM and includes 103 loci. Eight of these have been designated reference loci (see Table 2 and previous section) on account of their wide usage that would enable the cross reference of independent maps created in different laboratories.
Christine M. Disteche   +6 more
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Inactivation of the X-Chromosome

New England Journal of Medicine, 1972
IN its classic form, the hypothesis of X-chromosome inactivation holds that only one of the two X-chromosomes present in cells of female mammals is functional. The "decision" of which X-chromosome is to operate in a cell occurs quite early in embryogenesis and, once made, is irreversible for that cell and all its progeny.
openaire   +3 more sources

Chromosome 9 of Ellobius lutescens is the X chromosome [PDF]

open access: possibleChromosoma, 1988
Ellobius lutescens carries an apparently identical karyotype (2n = 17) in both sexes. On the basis of indirect evidence the unpaired chromosome 9 has been considered to represent the X chromosome of this species. We have obtained data to substantiate this view by four different techniques. After fusion of HPRT- RAG cells with E.
Sher Ali   +5 more
openaire   +2 more sources

Methylation and the X chromosome

BioEssays, 1986
AbstractRecent approaches towards an understanding of the molecular basis of X‐chromosome inactivation in mammals suggest that regulation is due to multiple events including DNA methylation.
openaire   +3 more sources

X Chromosome and Ovarian Failure

Seminars in Reproductive Medicine, 2007
Genes for reproduction are enriched on the sex chromosomes and they may be involved in the many forms of X- or Y-linked infertility. Here we review the X-linked disorders of ovulation and we show that despite the relatively frequent observation of X chromosome rearrangements in women with ovarian dysgenesis or ovarian failure, the search for X-linked ...
Toniolo, Daniela, RIZZOLIO, Flavio
openaire   +4 more sources

X-Chromosome workshop

Psychiatric Genetics, 1998
Researchers presented results of ongoing research to the X-chromosome workshop of the Fifth World Congress on Psychiatric Genetics, covering a wide range of disorders: X-linked infantile spasms; a complex phenotype associated with deletions of Xp11; male homosexuality; degree of handedness; bipolar affective disorder; schizophrenia; childhood onset ...
openaire   +2 more sources

GENES ON THE X CHROMOSOME

Canadian Journal of Genetics and Cytology, 1965
Our introduction to X-cliromosonie cartography came when a blood group disclosed itself to be X-linked and to have a frequency that made it, theoretically at any rate, almost the best imaginable niarlcer of the X (h~lann, Calian, Gelb, Fisher, Hamper, Tippett, Sanger and Race, 1962).
openaire   +3 more sources

The X chromosome and systemic sclerosis

Current Opinion in Rheumatology, 2006
Similar to the majority of autoimmune rheumatic diseases, systemic sclerosis is characterized by a striking female predominance superimposed on a predisposing genetic background. At least two genetic mechanisms have been proposed that play a role in susceptibility to systemic sclerosis; firstly the maintenance of immune tolerance via genes on the X ...
C. Selmi, P. Invernizzi, M. E. Gershwin
openaire   +3 more sources

MECHANISMS OF X-CHROMOSOME REGULATION

Annual Review of Genetics, 1988
Article de synthese sur les mecanismes de l'inactivation des chromosomes X chez les mammiferes, stabilite de l'inactivation dans les lignees somatiques et phenomenes de ...
Grant, Stephen G, Chapman, Verne M
openaire   +4 more sources

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