| The new analysis confirmed the existence of 1,098 protein-coding genes on the X chromosome. |
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| The disorder is inherited as a sex-linked trait, with the HGPRT gene on the X chromosome. |
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| In total, variability at 205 microsatellites was studied on the third and the X chromosome. |
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| Epigenetic regulation in aging mammals can be quantitatively measured using genes subject to X chromosome inactivation and genomic imprinting. |
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| In most species males carry a single X chromosome and two autosomes, while females have two copies of both. |
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| Remarkably, almost all of these traits map genetically to the X chromosome. |
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| This antibody labels the nuclei of the male embryos, revealing a single subnuclear spot that corresponds to the X chromosome. |
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| A subset of 12 fragments was selected from 105 noncoding DNA fragments from both intronic and intergenic regions on the X chromosome. |
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| To allow comparison between sexes, X chromosome abnormalities were concurrently studied in women. |
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| For example, a screening check of Down's Syndrome might pick up the extra X chromosome that occurs in Chris's condition, Klinefelter's syndrome. |
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| The predominant anomalies in reproductive specimens include trisomy of the autosomes and monosomy of the X chromosome. |
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| In contrast to the autosomes, recombination of the X chromosome occurs only in females. |
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| These two genes are tightly linked to the left telomere of the X chromosome. |
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| Analysis of males for most loci allowed these loci to be mapped to autosomes or the X chromosome. |
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| One potential factor postulated to influence the fate of duplicated genes is germ-line-specific X chromosome inactivation. |
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| In mammals, methylation is required for essential developmental programs including X chromosome inactivation in females and genomic imprinting. |
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| The dosage compensation complex cannot accumulate on the male X chromosome in the mutants. |
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| If X chromosome loss occurs during oogenesis, then some ova are expected to be nullo-X, which would result in a patroclinous non-Unc male. |
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| Males can, therefore, arise spontaneously, as a result of the rare meiotic loss of an X chromosome. |
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| Males arise spontaneously through nondisjunction of the X chromosome during gametogenesis and the subsequent fusion with a normal gamete, yielding an XO individual. |
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| Another variation of numerical sex chromosome abnormalities is X chromosome mosaicism, which may be the third most common sex chromosome abnormality described in the horse. |
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| Since the genes for sex-linked traits are carried only in the X chromosome, it follows that a female would have twice the chance of receiving a sex-linked gene than a male would. |
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| Klinefelter's syndrome is a congenital disorder in which men have an extra X chromosome and underdeveloped testes. |
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| Researchers have long been aware of a genetic variant on the X chromosome that was linked to male pattern baldness. |
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| This means that if a bad HPRT gene on one X chromosome is paired with a normal gene on the other X chromosome the disease does not develop. |
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| This is because boys only have one X chromosome, so a single recessive gene on that X chromosome will cause the disease. |
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| The disease mostly affects men because they have only one copy of the X chromosome. |
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| The proportion of the cells with the active X chromosome carrying the fragile X mutation determines the clinical manifestations in females. |
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| However, males who inherit an X chromosome with a gene for a sex-linked disease have no second X to fall back on and, therefore, have the disease. |
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| The multitask gene is obviously linked to the X chromosome, because I know of no men who carry the trait. |
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| The largest cluster of imprinted genes in humans is the X chromosome. |
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| These defects, which include conditions such as hemophilia and color-blindness, are called X-linked because the genes are carried on the X chromosome. |
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| We observed complete interference for both oogenesis and spermatogenesis in hermaphrodite animals and for the entire lengths of both an autosome and the X chromosome. |
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| Extensive gene traffic on the mammalian X chromosome. |
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| The X chromosome is one of the sex chromosomes: females have two X chromosomes and males have one X and one Y. Each X chromosome carries one copy of the gene. |
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| When such an X chromosome contributes to the child, the development will lead to a male, because of the SRY gene. |
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| The tips of the Y chromosome that could recombine with the X chromosome are referred to as the pseudoautosomal region. |
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| The chromosome with this allele became the Y chromosome, while the other member of the pair became the X chromosome. |
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| Males have one Y chromosome and one X chromosome, while females have two X chromosomes. |
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| Stevens proposed that chromosomes always existed in pairs and that the Y chromosome was the pair of the X chromosome discovered in 1890 by Hermann Henking. |
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| In an even more unusual twist, at least one genetic disease may result from a specific error in imprinting on the gender-related X chromosome itself. |
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| We used tag data for the X chromosome for male and aneuploid pregnancies and used the specific chromosome present in 3 copies when fetal aneuploidy was present. |
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