Results 251 to 260 of about 231,455 (290)
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Chromosomal abnormalities in oocytes

Molecular and Cellular Endocrinology, 2001
Since the beginning of in vitro fertilization (IVF), basic research has provided insight in the field of human reproduction, especially in genetics. Indeed, the contribution of chromosomal abnormalities to oocyte disorders and impaired embryonic development is now well known.
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Chromosome abnormalities in sperm of individuals with constitutional sex chromosomal abnormalities

Cytogenetic and Genome Research, 2005
The most common type of karyotype abnormality detected in infertile subjects is represented by Klinefelter’s syndrome, and the most frequent non-chromosomal alteration is represented by Y chromosome long arm microdeletions. Here we report our experience and a review of the literature on sperm sex chromosome aneuploidies in these two conditions.
FERLIN, ALBERTO   +2 more
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Chromosomal abnormalities in Waldenström's macroglobulinemia

Cancer Genetics and Cytogenetics, 1992
We report the results of cytogenetic studies of direct bone marrow (BM) preparations and of short-term BM and peripheral blood (PB) cultures from 17 patients with Waldenström's macroglobulinemia. We noted clonal chromosome changes in 10 patients.
Carbone P.   +5 more
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Chromosome abnormalities in leukemia.

Journal of Clinical Oncology, 1979
The consistent occurrence of nonrandom chromosome changes in human malignancies suggests that they are not trivial epiphonomena. Whereas we do not understand their significance at present, one possible role which they may fulfill is to provide the chromosomally aberrant cells with a proliferative advantage as the result of alteration in the number or ...
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Chromosome Abnormality in Cattle

Nature, 1966
RECENTLY, a chromosome abnormality found in three cases of lymphatic leukaemia in cattle was described1. This communication reports my latest findings concerning this abnormality. It appears that in Sweden cattle chromosomes have only once before been investigated using modern techniques.
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Sex Chromosomes and Sex Chromosome Abnormalities

Clinics in Laboratory Medicine, 2011
This article focuses on constitutional sex chromosome abnormalities detected by conventional cytogenetics and fluorescence in situ hybridization. The author discusses the two general classifications of abnormalities: numerical and structural. Also included are descriptions of unique aspects of X and Y chromosomes, technological advances in detection ...
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Meiotic Chromosomal Abnormality Detected in a Heterozygote of Elymus nutans

Frontiers in Plant Science, 2022
Quanwen Dou, Bo Liu
exaly  

Chromosome Abnormalities in Human Sperm

1985
The ability to analyze human sperm chromosome complements after penetration of zona pellucida-free hamster eggs provides the first opportunity to study the frequency and type of chromosomal abnormalities in human gametes. Two large-scale studies have provided information on normal men.
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LITHIUM AND CHROMOSOME ABNORMALITIES

The Lancet, 1969
U, Friedrich, J, Nielsen
openaire   +2 more sources

Chromosomes and Chromosomal Abnormalities

2012
Maria Descartes   +2 more
openaire   +1 more source

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