Frequency of sex chromatin and number of nucleoli in cells grown in tissue cultures from normal human subjects and human subjects with supernumerary x-chromosomes.
D000328:Adult; D000368:Aged; D001706:Biopsy; D002466:Cell Nucleolus; D046508:Culture Techniques; D005260:Female; D005347:Fibroblasts; D006128:Growth; D006801:Humans; D007621:Karyotyping; D008297:Male; D008875:Middle Aged; D012728:Sex Chromatin; D012729:Sex Chromosome Aberrations / Q000453:epidemiology*; D012867:Skin / Q000166:cytology