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Absence of Y chromosome microdeletions in patients with cryptorchidism and hypospadias
(Freund Publishing House Ltd, 2004)
Microdeletions of the Y chromosome have been observed in some patients with cryptorchidism and severe defects of spermatogenesis. We investigated whether microdeletions of the Y chromosome may be present in patients with ...
Y chromosome microdeletion prevalence in infertile Chilean men
(Elsevier, 2016)
Objective: The aim of this study is to determine the prevalence of Y chromosome microdeletions in infertile Chilean men. Material and methods: A group of 102 infertile men with azoospermia or severe oligozoospermia were ...
Genetic variation within and between four chromosomal races of Liolaemus monticola in Chile
(2007)
Allozyme variability was assessed within and between 18 samples of four chromosomal races of the Liolaemus monticola complex: "Southern, 2n=34", "Northern, 2n=38-40", "Multiple Fission, 2n=42-44" and "Northern modified 1, ...
Alterations in chromosomal synapses and DNA repair in apoptotic spermatocytes of Mus m. domesticus
(Pagepress, 2016)
We investigated whether apoptotic spermatocytes from the mouse Mus m. domesticus presented alterations in chromosomal synapses and DNA repair. To enrich for apoptotic spermatocytes, the scrotum's temperature was raised by ...
Method for obtaining chromosomes
(Caldasia, 1973)
It is very easy to obtain chromosomes from anuran amphibians.Amphibians have very large chromosomes which can easily be seen with an ordinary microscope. The method used has been tested in the laboratory and also at ...
Chromosomal size conservation through the cell cycle supports karyotype stability in Trypanosoma cruzi
(ELSEVIER SCIENCE BV, 2007-05)
The Trypanosoma cruzi karyotype shows an extensive
chromosomal size polymorphism. Absence of condensed mitotic
chromosomes and chromatin fragility are characteristic
features of T. cruzi which would allow DNA breaks and ...
Caracterización citogenético-molecular de enfermedades genéticas en el Hospital Base de Puerto Montt
(2011)
Background: Chromosome aberrations (CA) are the main etiology of multiple
congenital malformations, recurrent abortions and intellectual disability (ID) specifi
cally of moderate and severe degree. They account for 0.3 ...
Further Evidence of Chromosome Abnormalities in Normal and Haploid Gynogenetic Progenies of Rainbow Trout, Oncorhynchus mykiss
(1996)
Gynogenetic haploid progenies of rainbow trout, produced using UV light for sperm
inactivation, were studied in comparison with normal progenies. In a total of 437 normal embryos,
3.5% of them showed chromosome abnormalities: ...
Sex chromosomes, synapsis, and cohesins: a complex affair
(SPRINGER, 2006-06)
During first meiotic prophase, homologous chromosomes are held together by the synaptonemal complex, a tripartite proteinaceous structure that extends along the entire length of meiotic bivalents. While this feature is ...
Chromosome 22q11 deletion in a patient with pulmonary atresia, intact ventricular septum, and confluent branch pulmonary arteries
(Cambridge University Press, 2018)
In this study, we report a patient with pulmonary atresia with intact ventricular septum (PA/IVS), confluent pulmonary arteries supplied by an arterial duct, and chromosome 22q11.2 microdeletion. The 22q11.2 deletion ...