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X chromosome

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X chromosome
named it X element, which later became X chromosome after it was established that it was indeed a chromosome. Because males have only one X chromosome, they are more likely to have an X chromosome-related disease. wikipedia.org
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X chromosome
X chromosome(biology 生) chromosome that occurs as one of an identical pair in female cells to produce a female in the reproductive process, or singly combined with a single Y chromosome in male cells to produce a male X染色体. Cf 参看 Y chromosome (Y). 牛津英汉双解词典
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Association of genetic variation on X chromosome with ...
More importantly, our study indicated a higher risk of SLE for females with trisomy X. lupus erythematosus, systemic; polymorphism, genetic; autoimmune diseases ...
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Study of gay brothers may confirm X chromosome link to homosexuality - AAAS
An X-linked gene for homosexuality has long been proposed as a way to explain how the trait persists in the population even though gay men tend to have fewer offspring: The gene could increase fertility in females, who would have two "chances" to inherit it. Many researchers were skeptical that an analysis of only 38 pairs of gay brothers was ...
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X chromosome
X chromosome Genetics. Also † x chromosome. [X 3 e.] A chromosome with different morphology and properties from others in the complement, now recognized as a sex chromosome occurring in both sexes of a species, man and other mammals having one in the somatic cells of the male and two in those of the... Oxford English Dictionary
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A Second X Chromosome Could Explain Why Women Live Longer Than Men ...
Women have an average life expectancy that's about 4 years longer than men's - regardless of culture or geography. Even among animal species, females outlive males. Why females have an advantage in the longevity department hadn't been well understood. In the past, some had assumed it had to do with lifestyle.
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X-chromosome reactivation
X chromosome reactivation (XCR) is the process by which the inactive X chromosome (the Xi) is re-activated in the cells of eutherian female mammals. an X chromosome with a healthy wild-type allele. wikipedia.org
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X chromosome "weight"? According to Wikipedia, the X chromosome has approximately 153 million base pairs, while the Y chromosome has only 60 million base pairs. Thus, the difference is roughly 93 million base pairs. ...
`93 million bp/cell x 650 daltons/bp x 10^13 cells/body x 1.66 * 10^-27 kg/dalton = 0.001 kg` So I would say it's not too much of a difference :P
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Why Do Women Have More Autoimmune Diseases? Study ...
Feb 1, 2024 — ... lupus and multiple sclerosis. A study published on Thursday offers an explanation rooted in the X chromosome. The research, published in the ...
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Chromosome X open reading frame 57
Chromosome X open reading frame 57 is a protein that in humans is encoded by the CXorf57 gene. References Further reading wikipedia.org
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Polycomb recruitment in X chromosome inactivation
X chromosome inactivation (XCI) is the phenomenon that has been selected during the evolution to balance X-linked gene dosage between XX females and XY chromosome. wikipedia.org
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Determining whether X chromosome from sperm or egg Is there any way of determining which X chromosome a female inherited from her father and which from her mom ?
yes it is possible... in placenta (trophectoderm) the paternal X is epigenetically silenced [[ref]]( That is if you do the test in the pre/neo-natal stage
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Male with X-chromosome matches from father's side? I am a male and in my FTDNA DNA-matches, when I filter for matches by X-chromosome match, I get around 30 people who can only be possible relatives from my father sid...
FTDNA will include segments as small as 1cM in X-matches; you'll need to compare in the chromosome browser to see how much you share with these paternal If these matching segments on the X chromosome turn out to be very small segments, they're most likely Identical By Chance (IBC) and can be disregarded
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Which X-Y chromosomes have the developmental genes for mammals? I know that for a given mammal, half the chromosomes come from father and half from mother. This is typically denoted as x-y. I've recently read about "t...
The presence or absence of a Y chromosome determines sex in mammals. (An exception, in males, are those genes on the X chromosome, which in males are present in only one copy and which came from the mother.
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X连锁显性遗传
Males can only get an X chromosome from their mother whilst females get an X chromosome from both parents. syndrome (and hence have more than one X chromosome). wikipedia.org
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