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A method is described for detection of chromosomal sex from a smear of oral mucosa cells. In 50 females 20-79% of the cells had sex chromatin bodies in the nuclei. The occurrence of similar masses in oral smears from 50 males ranged from 0-4%. The method offers the advantage of ease in securing suitable cells, rapidity in preparation and simplicity of interpretation.
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Marberger et al. (1955) studied this question.
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