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2023
X Chromosome is the sex chromosome that is found in many organisms. Both males and females, including mammalians, have X Chromosomes. Females have XX sets of chromosomes, and males have XY sets of chromosomes. X Chromosome aids in identifying the sex of the organism. The Human X chromosome contains approximately 1500 genes. These genes may undergo some
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X Chromosome is the sex chromosome that is found in many organisms. Both males and females, including mammalians, have X Chromosomes. Females have XX sets of chromosomes, and males have XY sets of chromosomes. X Chromosome aids in identifying the sex of the organism. The Human X chromosome contains approximately 1500 genes. These genes may undergo some
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Pathology, 1983
Publisher Summary The fragile X chromosome is associated with a common form of X-linked mental retardation in males and possibly females. The fragile X is so called because it has a fragile site at the distal end of the long arm. Fragile sites are morphological features of chromosomes defined as specific points liable to show some specific features ...
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Publisher Summary The fragile X chromosome is associated with a common form of X-linked mental retardation in males and possibly females. The fragile X is so called because it has a fragile site at the distal end of the long arm. Fragile sites are morphological features of chromosomes defined as specific points liable to show some specific features ...
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Science, 1995
In many species, females possess two X chromosomes and males have one X chromosome. This difference is critical for the initial determination of sex. However, the X encodes many functions required equally in males and females; thus, X chromosome expression must be adjusted to compensate for the difference in dosage between the sexes ...
R L, Kelley, M I, Kuroda
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In many species, females possess two X chromosomes and males have one X chromosome. This difference is critical for the initial determination of sex. However, the X encodes many functions required equally in males and females; thus, X chromosome expression must be adjusted to compensate for the difference in dosage between the sexes ...
R L, Kelley, M I, Kuroda
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Chromosome imprinting and the mammalian X chromosome
Nature, 1975Chromosome imprinting is the process by which one of two genetically homologous chromosomes is predetermined to function differently from the other at a subsequent stage in development. In the coccid insects, imprinting occurs in the egg, at the time of fertilisation; it probably occurs at the same time and site in mammals, and possibly also in Sciara.
H S, Chandra, S W, Brown
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Mammalian X Chromosome Inactivation
1992The initial step in mammalian sexual differentiation is based on the XX: XY chromosomal system. In order to function properly, this chromosomal mechanism must be regulated to eliminate the aneuploidy effects in somatic tissues and still insure normal sexual differentiation and development.
S M, Gartler, K A, Dyer, M A, Goldman
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X Chromosome and Ovarian Failure
Seminars in Reproductive Medicine, 2007Genes 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
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Human Genetics, 1983
Starting with the male chiasma distribution for chromosome 2, a significantly better fit is obtained to lod scores for the X chromosome if terminalization of distal chiasmata is assumed. The linkage data are not consistent with a uniform distribution of chiasmata, absence of terminalization, or restriction of terminalization to the distal band.
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Starting with the male chiasma distribution for chromosome 2, a significantly better fit is obtained to lod scores for the X chromosome if terminalization of distal chiasmata is assumed. The linkage data are not consistent with a uniform distribution of chiasmata, absence of terminalization, or restriction of terminalization to the distal band.
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Presse medicale (Paris, France : 1983), 2007
X and Y chromosomes hove evolved from a common proto-chromosome, 300 million years ago. They shore 29 genes, scottered in two homologous regions (PAR1 and PAR2). Ten per cent of humon genetic diseases result from mutations of X-linked genes. Disorders with mental handicap, muscle involvement or infertility ore overrepresented. X chromosome inactivation
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X and Y chromosomes hove evolved from a common proto-chromosome, 300 million years ago. They shore 29 genes, scottered in two homologous regions (PAR1 and PAR2). Ten per cent of humon genetic diseases result from mutations of X-linked genes. Disorders with mental handicap, muscle involvement or infertility ore overrepresented. X chromosome inactivation
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