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  • Title: [Molecular cytogenetic study of Robertsonian translocation 13;14 and Down syndrome in a 3-year-old infant].
    Author: Iurov IIu, Vorsanova SG, Monakhov VV, Beresheva AK, Solov'ev IV, Iurov IuB.
    Journal: Tsitol Genet; 2004; 38(6):54-9. PubMed ID: 15882036.
    Abstract:
    We describe here a rare case of Robertsonian translocation 13;14 of maternal origin combined with regular trisomy 21 (46,XX,der(13;14)(q10;q10)mat,+21) with Down syndrome phenotype. Molecular cytogenetic studies allowed us to determine the maternal origin of additional chromosome 21 and the non-disjunction of chromosome 21 to occur in meiosis I. On the basis of data obtained we discuss the possible involvement of structural alterations of chromosomes 13 and 14 in the chromosome 21 non-disjunction.
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