The Tohoku Journal of Experimental Medicine
Online ISSN : 1349-3329
Print ISSN : 0040-8727
ISSN-L : 0040-8727
Genetic Studies on Twins of Down's Syndrome with 47-Chromosomes
HIROSHI SHIONO, SHOICHI KASAHARA, AKIO TOYOGUCHI, NOBUHIKO WATANABE, SHIGERU FUGITA, MAMORU YAMAGUCHI
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Keywords: twin, Down's syndrome
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1971 Volume 105 Issue 4 Pages 309-316

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Abstract
Eight-month-old male twins of Down's syndrome were found to have the aneuploid number of 47 chromosomes. The karyotype analysis revealed the presence of trisomy G. Detailed testing of blood groups were performed, all factors tested being found to be identical in twins. Analyses of the palm and sole prints of the twins were also compatible with their monozygosity.
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