[tri-med] Re: Calling all mosaic-ers

 
In a message dated 3/31/2006 11:22:31 A.M. Eastern Standard Time,  
basil1_2000@xxxxxxxxxxx writes:
UPD  isn't an issue if the flavour (number) doesn't have any recessive genes. 
 
eg the 18th chromosome doesn't have any recessive genes (that we are aware  
of) so if you inherit two from one parent then it causes no problems. But  
they have found that there are recessive genes on a few chromosomes - 7,  11, 
14, 15 and especially 2 and 16. (I knew that 2, 11 and 16 were  problems but 
I wasn't aware of 7 and 14. In 14 it is only a problem if  they have two 
chromsomes from the father - if its two maternal 14  chromosomes its not a 
problem. Unfortunately you can't tell which without  doing a DNA analysis.


Am I reading this correctly??  I will use Michael as my example.   Michael is 
t18 mosaic.  He tested 25% in his blood.  Let's say he  fathers a child.  
Does that mean he will not pass on the T18 even if the  sperm that did the deed 
contained 2 #18????  Or am I way off and should go  make some more coffee and 
then re-read this again?  

Blessings, W
Monica in CT
homeschooling mom to AJ (age  11), Christine ( 7 1/2), Mary Elizabeth ^l^, 
Michael (age 4, Trisomy 18 mosaic  aka Edwards syndrome) and Birgitta (age 2 
1/2, adoption finalized 2/1/05 !!,  Trisomy 21 aka Down's Syndrome, Fetal 
Alcohol 
Syndrome, SID  )



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

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