Frequency and source of chromosome abnormalities in chick embryos
نویسندگان
چکیده
منابع مشابه
Chromosome abnormalities in human embryos.
The presence of numerical chromosome abnormalities in human embryos was studied using fluorescence in-situ hybridization with four or more chromosome-specific probes. When most cells of an embryo are analysed, this technique allows differentiation to be made between aneuploidy, mosaicism, haploidy and polyploidy. Abnormal types of fertilization, such as unipronucleated, tripronucleated zygotes ...
متن کاملTreatment-related chromosome abnormalities in human embryos.
Mosaicism was studied in good quality embryos from four different centres in order to assess the effects of follicular induction and exposure to laboratory conditions on chromosomal status. The donated embryos were fully biopsied and analysed by fluorescence in-situ hybridization using probes for chromosomes X, Y, 13, 18 and 21, simultaneously. The number of abnormal cells present indicated the...
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abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...
15 صفحه اولChromosome abnormalities in early embryos of the pig.
This report presents the results of chromosome analysis of blastocysts collected and processed as previously described (McFeely, 1966) from seven gilts selected at random from the swine herd at the University of Pennsylvania. No records of parentage of the gilts were available, but as they consisted of various breeds and cross breeds from a variety of sources, it was assumed that they were not ...
متن کاملChromosome abnormalities in 1255 cleavage-stage human embryos.
The relationship was examined between chromosome abnormalities in cleavage stage human embryos and maternal age, embryo morphology and development rate. Embryos that were classified as suboptimal for transfer from patients undergoing IVF treatment were disaggregated, and all or most of their cells were fixed for analysis by fluorescence in-situ hybridization. Chromosomes X, Y, 13, 18 and 21, an...
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ژورنال
عنوان ژورنال: Annales de Génétique et de Sélection Animale
سال: 1977
ISSN: 0003-4002
DOI: 10.1051/gse:19770451