Results 221 to 230 of about 483,022 (266)
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A de novo translocation in a family with a balanced reciprocal chromosomal translocation

Clinical Genetics, 1986
A carrier of a reciprocal translocation between chromosomes 10 and 18 had a child with a reciprocal translocation involving different segments of the same chromosomes. The categories of possible meiotic errors in carriers of balanced rearrangements must, therefore, be expanded to include new reciprocal translocations.
M. Priscilla Short   +2 more
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Autosomal reciprocal translocations and 13/14 translocations: A population study

Clinical Genetics, 1976
Fifteen children with autosomal reciprocal translocations were found in an incidence study of chromosome aberrations among 11,148 consecutively liveborn children in a Danish Maternity Hospital (1.34 per 1,000).The segregation rate of the balanced forms was 60 % and that of unbalanced forms 4 %; the frequency of familial cases was 73 %.
K. Rasmussen, J. Nielsen
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Three cases of mosaicism for balanced reciprocal translocations

American Journal of Medical Genetics, 1998
Mosaicism for a balanced reciprocal translocation (BRTM) is rare. As far as we know only 26 cases of BRTM, demonstrated in lymphocyte cultures, have been described, five of which had an abnormal phenotype. Prenatally three confirmed cases with a normal phenotypic outcome have been described.
S Castedo   +6 more
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Site-specific reciprocal translocation, t(11;22) (q23;q11), in several unrelated families with 3:1 meiotic disjunction.

American journal of medical genetics, 1980
We have studied 32 unrelated families with a site-specific reciprocal translocation between chromosomes 11 and 22 [t(11;22) (q23;q11)]. In translocation heterozygotes 3:1 meiotic segregation occurs and results in abnormal progeny who carry the der(22) as
E. Zackai   +3 more
semanticscholar   +1 more source

On the Probability of Fixation of Reciprocal Translocations

The American Naturalist, 1941
The chance of fixation of a reciprocal translocation in a population of plants, with exclusive sexual reproduction, is of the order 10-3 if the effective population number (N) is 10. It is of the order of 2 x 10-6 in groups of 20 individuals and of the order 3 x 10-14 in groups of 50 individuals.
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Translocation (1;19)(q21;q13.3) is a recurrent reciprocal translocation in meningioma

Cancer Genetics and Cytogenetics, 2002
Benign meningiomas are characterized by a normal karyotype or loss of all or part of chromosome 22. Histologically higher grade tumors are typically characterized by a pattern of increasing chromosome loss and instability. This characteristic pattern of unbalanced chromosome aberrations is punctuated in the literature by several intriguing reports of a
Edward L. Thomas   +3 more
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The use of surface spreading in the pachytene analysis of a human t (Y;17) reciprocal translocation.

Cytogenetics and Cell Genetics, 1982
This paper describes a human Y;17 reciprocal translocation in an azoospermic male ascertained through infertility. Meiotic studies made on both air-dried and surface-spread preparations are reported in addition to a somatic chromosome analysis carried ...
C. Laurent   +3 more
semanticscholar   +1 more source

Fragile sites are unrelated to reciprocal translocation breakpoints

Clinical Genetics, 1987
In 492 cases of reciprocal translocations in balanced carriers, the 984 breakpoints were studied for a possible relationship to the 45 fragile sites. Random coincidence was predicted at 14% and the observed coincidence was 14.3%, indicating that the two events are unrelated.
John R. Davis, Roberta M. Hagaman
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An azoospermic male with presumably balanced reciprocal translocation

Clinical Genetics, 1983
This report describes a physically normal man carrying a presumably balanced translocation between chromosomes 2 and 13. His karyotype was 46, XY, t(2;13)(q37;q15). The man was azoospermic. Testicular histology showed an arrest in spermatogenesis at the spermatocyte stage.
N. Goulandris   +3 more
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Reciprocal translocation with adaptive segment length [PDF]

open access: possibleProceedings of the 2002 Congress on Evolutionary Computation. CEC'02 (Cat. No.02TH8600), 2003
A novel artificial crossover operator based on reciprocal translocation of chromosomal segments is introduced. Positions and lengths of genome segments are determined at random. However, the segment size limits are adaptively changed based on the improvement of average fitness value over generations.
openaire   +1 more source

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