Who is the reason of a birth of the child with illness or disease of the Down - the father or mother?..

[h]

Who is the reason of a birth of the child with illness or disease of the Down - the father or mother? I heard that 95 % - mother and 5 % - the father. Whether so it?

[Olja]

It trisonomija on 21 oh to a chromosome, at what here mother? You at school studied? Bpdbybnt? ghjxbnfqnt ext, ybr

[OhO]

Togda-the father?? Or anybody?

[Dr Hannibal lechter]

Olga vi v medinstitute uchilis?
Vo pervich Eto ne tolko trisomiya 21, variantov mneskolko.
Da, RISK rogdeniya Dauna povishaetsya s vozrastom materi, no eto ne absolutniy pokazatel.
Eto statistika.
Esche chut chut statistiki-u otcov alkogolikov " so stagem " Dauni rogdautsya v 1.8 raza chasche chem u nepuschich.
Ot chego eto zavisit na 100 % skazat vam nikto ne smoget. Izvestno

[Kuznetsova E.A.]

Yes, occurs or happens nerashozhdenie 21 chromosomes in sex cells of women 35 years more often is more senior. At men after 45 years frequency of a birth of children with a hereditary pathology also increases or is enlarged, but concerning a syndrome of the Down it is less expressed.