Loading...
  • retain
  • Chick embryo fibroblasts infected with Rous sarcoma virus in vitro are rendered malignant for such cells produce typical Rous sarcomas when injected into susceptible chicks since the tumors produced predominantly retain the sex chromatin patterns of the donor cells when such cells are injected into a recipient of the opposite sex. (rupress.org)
  • Cultures in which sex chromatin persists also retain the viral insensitivity of their source material. (sciencemag.org)
  • However
  • However, examination of the sex chromatin of cells at the periphery of the tumor shows presence of recipient cells though the bulk of the tumor is clearly of donor cell origin. (rupress.org)
  • The symbionts, with their maternal inheritance, benefit from inducing the production of exclusively daughters, however the optimal sex ratio for the nuclear genome is more male-biased. (biomedcentral.com)
  • cells
  • Injection of RSV induces tumors of the sex of the recipient as also does the injection of transformed cells rendered incapable of multiplication by x-rays. (rupress.org)
  • When such tumors induced by transformed cells are serially transferred in recipients of the opposite sex, they gradually convert to the sex of the recipient indicating that the tumors are not indefinitely transplantable. (rupress.org)
  • Sex chromatin counts of subcultured cells of both female human mammary tumor and female rabbit kidney show a considerable drop from an initial high level. (sciencemag.org)
  • female
  • Because of the increasingly female-biased sex ratio in the population during a spreading PI- Wolbachia infection, sex allocation alleles in the host that cause the production of more sons are rapidly selected. (biomedcentral.com)
  • Therefore, selection at the cytoplasmic level favors any manipulation of the sex ratio increasing female production. (biomedcentral.com)
  • differentiation
  • These two pairs of X-Y histone demethylase homologs target H3K4me3 and H3K27me3, two chromatin marks that play a central role in regulating the balance between pluripotency and differentiation. (grantome.com)
  • By setting up different chromatin states at important promoters in XX and XY germ cells, the X/Y-encoded demethylases may predispose these cells to respond differently to cues from XX or XY somatic tissue, thus enabling appropriate male or female gamete differentiation. (grantome.com)
  • Publications] Shigeki Mizuno: 'Sex-specific DNA sequences in Galliformes and their application to the study of sex differentiation' In : Manipulation of the Avian Genome (R.J.Etches and A.M.V.Gibbins, eds. (nii.ac.jp)
  • gamete
  • Fulfillment of each of these aims will enhance our current understanding of sex-specific gamete development, and improve clinical approaches to disorders of fertility and early embryonic development. (grantome.com)
  • sperm
  • BACKGROUND: The sperm chromatin structure assay (SCSA) provides an objective assessment of sperm chromatin integrity, which is essential for normal sperm function. (lu.se)
  • CONCLUSIONS: Sex steroid production, spermatogenic function, abstinence time and seminal vesicle function appear to impact on sperm chromatin integrity and thereby on sperm fertilizing capacity. (lu.se)
  • structure
  • Publications] Noriyuki Suka: 'W-heterochromatin of chicken;its unusual DNA components,late replication,and chromatin structure' Genetica. (nii.ac.jp)
  • its unusual DNA components, late replication, and chromatin structure' Genetica. (nii.ac.jp)
  • Primary
  • A survey of sex chromatin abnormalities among 4514 mental defectives, Primary microorchisism as seen in mentally handicapped children. (springer.com)
  • Its expression causes the development of primary sex cords, which later develop into seminiferous tubules. (wikipedia.org)
  • however
  • Surprisingly, however, the sex chromosome-encoded factors acting in the germ cells to ensure compatibility with the soma remain unknown. (grantome.com)
  • However, she failed the sex chromatin test in 1985, and thus was ruled ineligible to participate in women's athletics. (wikipedia.org)
  • common
  • In contrast to the other common sex chromosome aneuploidies-47,XXX and 47,XXY (Klinefelter syndrome)-the average IQ scores of 47,XYY boys identified by newborn screening programs were not reduced compared to the general population. (wikipedia.org)
  • less
  • Sometimes symptoms are more prominent and may include weaker muscles, greater height, poor coordination, less body hair, breast growth, and less interest in sex. (wikipedia.org)
  • time
  • The sex chromatin test was, at the time, the first step in the gender verification process, and not intended to provide a definitive and final decision, but officials from the International Olympic Committee and the International Association of Athletics Federations routinely advised athletes to fake an injury after such a test so they could withdraw from competition quietly and protect their privacy. (wikipedia.org)
  • bodies
  • In combination with karyotyping, it allowed scientists to identify individuals with an abnormal number of sex chromosome bodies, furthering diagnosis and treatment of congenital diseases. (cdnmedhall.ca)
  • copy
  • If a boy has inherited a copy of a particular sex-linked mutation (carried on the X chromosome) from his mother, he will develop Duchenne muscular dystrophy, a severe muscle wasting disease. (njwellness.com)
  • human
  • This discovery established, for the first time, a relationship between sex chromosome abnormalities and human disease. (cdnmedhall.ca)