Dietary effects on the pharmacokinetics of three carcinogenic nitrosamines.
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Biomedical subjects
Publications and source records attributed to O Sanchez.
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An abnormal chromosome No2 was found in the case of a child with an imperforate anus, a recto-vaginal fistula, unilateral atresia of the inner canal ,and deformity of the external ear. G-banding studies revealed an insertion of a segment of the short arm into the long arm in one of the chromosomes No. 2 of the proband, the apparent result of a de novo phenomenon of chromosome rearrangement.
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Using a simple G-banding technique developed in our laboratory, analysis of late prophases enables the visualization of approximately 1000 bands in the haploid set of human chromosomes. These bands have been classified according to the recommendations of the Paris Conference. The increased resolution offered by this technique is likely to be useful in the study of the structure and molecular organization of chromosomes and in identifying minute chromosome defects in birth defects and neoplasia.