منابع مشابه
Induction of Chromosomal Damages in Lymphocytes Induced by Radiopaque Substances
The iodinated radiopaques are widely used in radiologicals procedures for their higher quality and for better pathological diagnosis. Since they are numerous and can lead to cellular toxicity and/or genotoxicity, this study was carried out to investigate the efficacy of two routine compounds, that is, urographin 76% and telbrix 38. For this purpose, the metaphasic chromosomes of 30 patients un...
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متن کاملChromosomal changes associated with changes in development.
In the past there has been a tendency to dwell on aspects of chromosomes which stress constancy of structure, number and content; even to the extent of dismissing exceptions as 'aberrations' or 'oddities'. It is now becoming clear that genomes can be quite plastic, and that structural changes to chromosomes are an important and often necessary part of normal differentiation and development. Eli...
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A detailed survey is given of the types and classification of primary structural changes that can be induced in chromosomes and observed at the first metaphase after the initial damage. Comments upon identification and scoring are given for the benefit of new workers. The annotation concludes with a brief discussion of the potential relationships between the primary types, and the secondary or ...
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The immense variety of karyotypes found in extant species is unmis takable evidence that the process of evolution is associated with karyo typic change. The question whether the chromosome changes are a cause or a consequence of speciation has been debated intensely for many years and, as is often the case with biological problems, there has been no unequivocal answer. Evolution operates alon...
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ژورنال
عنوان ژورنال: Heredity
سال: 1968
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1968.36