Results 171 to 180 of about 15,433 (199)
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The Mental Implications of Sex Chromosome Aberrations
British Journal of Psychiatry, 1970I have chosen as the subject for my Blake Marsh Lecture the influence of sex chromosome aberrations on intelligence, mental health and social adjustment. This subject provides a fascinating example of how a branch of research, beginning in the field of mental retardation, arrived at discoveries which proved to be of significance to quite other fields ...
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Oncology Reports, 2003
Juvenile angiofibromas (JAs) are rare benign tumors arising almost exclusively in the posterior nasal cavity of adolescent males. While male sex predominance and tumor manifestation during adolescence are well known clinical features, their genetic causes are still unknown.
Peter K. Plinkert +5 more
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Juvenile angiofibromas (JAs) are rare benign tumors arising almost exclusively in the posterior nasal cavity of adolescent males. While male sex predominance and tumor manifestation during adolescence are well known clinical features, their genetic causes are still unknown.
Peter K. Plinkert +5 more
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Cytogenetic and Genome Research, 1965
Sex chromatin deoxyribonucleic acid (SC/DNA) content (determined by Feulgen-photometry) was higher in cultured cell nuclei derived from five women with presumptive iso-chromosomes for the long arm of the X than from five normal women. The mean SC/DNA values from subjects with deleted long arm or short arm iso-chromosome X; deletion of the short arm of ...
J. Lindsten +4 more
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Sex chromatin deoxyribonucleic acid (SC/DNA) content (determined by Feulgen-photometry) was higher in cultured cell nuclei derived from five women with presumptive iso-chromosomes for the long arm of the X than from five normal women. The mean SC/DNA values from subjects with deleted long arm or short arm iso-chromosome X; deletion of the short arm of ...
J. Lindsten +4 more
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Human Genetics, 1993
Although sex chromosome aberrations are frequently associated with statural changes, the underlying factors have not been clarified. To define the factors leading to the statural changes, we took the following three steps: (1) determination of the mean adult height in nonmosaic Caucasian patients with sex chromosome aberrations reported in the ...
Tsutomu Ogata, N Matsuo
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Although sex chromosome aberrations are frequently associated with statural changes, the underlying factors have not been clarified. To define the factors leading to the statural changes, we took the following three steps: (1) determination of the mean adult height in nonmosaic Caucasian patients with sex chromosome aberrations reported in the ...
Tsutomu Ogata, N Matsuo
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Mutation Research Letters, 1992
The pattern of titrated thymidine (3H-TdR), a direct precursor of DNA, induced aberrations on the X chromosome of Gryllotalpa fossor was examined. 3H-TdR produced aberrations randomly distributed over the entire length of the X chromosome; breaks were observed in both the eu- and the heterochromatic arms of the X chromosome in both the sexes. Since the
S. R. V. Rao, Soma Sarkar
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The pattern of titrated thymidine (3H-TdR), a direct precursor of DNA, induced aberrations on the X chromosome of Gryllotalpa fossor was examined. 3H-TdR produced aberrations randomly distributed over the entire length of the X chromosome; breaks were observed in both the eu- and the heterochromatic arms of the X chromosome in both the sexes. Since the
S. R. V. Rao, Soma Sarkar
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Aberrant Sex Chromosome Mechanisms in Mammals Evolutionary Aspects
1983There are a number of mammalian species with complicated or unknown mechanisms for sex determination. The literature is reviewed with special reference to the origin and evolution of the sex chromosome mechanisms in three species of monotremes and in the following species of rodents: the creeping vole (Microtus oregoni), the mole vole (Ellobius ...
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Clinical Genetics, 1983
A case of mixed (asymmetric) gonadal dysgenesis is reported in a girl with ambiguous external genitalia, a right intra‐abdominal testis, a left streak gonad containing follicle‐like structures devoid of oocytes and bilateral Mullerian derivatives.
S. A. Al-Awadi +6 more
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A case of mixed (asymmetric) gonadal dysgenesis is reported in a girl with ambiguous external genitalia, a right intra‐abdominal testis, a left streak gonad containing follicle‐like structures devoid of oocytes and bilateral Mullerian derivatives.
S. A. Al-Awadi +6 more
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DNA analysis of sex chromosomal aberration: curious mutation found in Turner syndrome
International Congress Series, 2004Abstract The clear evidence that curious fashion of mitochondrial DNA (mtDNA) inheritance was reported in sex chromosomal aberration. Human mtDNA is located outside the nucleus of the cell producing energy for the cell. In the recent years, mtDNA is being used in forensic DNA identification because each cell has many copies of mitochondria, and is ...
Kentaro Yamazaki +5 more
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1988
Both mouse and man have the common XX/XY sex chromosome mechanism. The X chromosome is of original size (5-6% of female haploid set) and the Y is one of the smallest chromosomes of the complement. But there are species, belonging to a variety of orders, with composite sex chromosomes and multiple sex chromosome systems: XX/XY 1
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Both mouse and man have the common XX/XY sex chromosome mechanism. The X chromosome is of original size (5-6% of female haploid set) and the Y is one of the smallest chromosomes of the complement. But there are species, belonging to a variety of orders, with composite sex chromosomes and multiple sex chromosome systems: XX/XY 1
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Sex chromosome aberrations and transsexualism
Fertility and Sterility, 2003Gerhard Bernaschek +5 more
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