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  • Title: C-bands in chromosomes 1,9, and 16 of twins.
    Author: Viégas J, Salzano FM.
    Journal: Hum Genet; 1978 Dec 18; 45(2):127-30. PubMed ID: 570165.
    Abstract:
    Thirty-two pairs of Caucasoid twins, 16 monozygotic (MZ) and 16 dizygotic (DZ) of the same sex, were studied in relation to the C-bands of chromosomes 1, 9, and 16. Concordance was not absolute among MZ, the best evaluation of the degree of genetic determination for these traits being 0.40 for chromosome 16, 0.64 for chromosome 1, and 0.73 for chromosome 9. Possible explanations for the failure to obtain 100% concordance are methodologic shortcomings, intercell variations in chromosome contraction, and unequal mitotic crossing over.
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