[tri-wings] Re: Screening

>I believe that the Domhoff family has also had more than one 
>Trisomy child (someone correct me if I'm wrong!!)

Teri & Ambre, 

Your right, but their 2 were also due to a parent's translocation.
But it isn't a Robertsonian Translocation (13/14) like yours, so 
their children were partial trisomy 13's, instead of full 13's.  

I guess I should mention that there is one other way though that
a parent could end up with 2 or more full trisomy children.  If 
one of the parents is unknowingly mosaic them self, then unlike in
your translocation situation where you could have a healthy, a
carrier, or an affected child, they would only have 2 options. 
Since a mosaic individual has 2 different chromosomal cell lines
in their body, which line they pass on to the child will determine
either a healthy child, or an affected child with whatever chromosomal 
condition they are mosaic with.  Having a mosaic child really isn't an
expected out come of this scenario, and if they did would just be a
random occurrence.

  
Fawna, mom to Philina 22yrs (PT6p & Moya Moya) 
Research coordinator for  the  TRIS Project  
http://home.mindspring.com/~fawna33/

                  Building ___ooOOoo__ Rainbows
                       www.trisomyonline.org
                  Families Helping Families On-line

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