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Genetics  (Expert Forum)
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Understanding paternity test results
Answered by
Lisa Kessler, MS, CGC - Hereditary Disorders, hemochromatosis, Patient Outreach
DNA Direct
Welcome to the Genetics Forum! Questions in the Genetics Forum are being answered by genetic experts from AccessDNA. This forum is for questions and support regarding a person’s predisposition to a variety of medical conditions such as Ashkenazi Jewish Diseases, Bleeding Disorders, Blood Clotting Disorders, Cancer Genetics and Hereditary Cancer Syndromes, Chromosome Abnormalities, Congenital Birth Defects, Cystic Fibrosis, Family History, Fragile X Syndrome, Infertility, Newborn Screening, Rare Genetic Disorders, Prenatal Screening and Testing. This forum is for questions and support regarding a person’s predisposition to a variety of medical conditions such as Alzheimer’s Disease, Blood-clotting Disorders, Breast Cancer, Cystic Fibrosis, Diabetes, Marfan Syndrome, Ehlers-Danlos Syndrome, etc.

Understanding paternity test results

by beachbummette, Dec 07, 2007 10:17AM
I was recently part of a paternity test.  I am hoping for a non-bias review of the results.  The results are as follows:

Child/Father  
D3S1358   15,16 / 16,17  
D7S820     10,11 / 11  
vWA          15,16 / 15,16  
FGA          20, 22 / 21, 22.2
D8S1179   13 / 13,14
D21S11     30, 35 / 29, 30
D18S51     18 / 14, 18
D5S818     10, 11 / 11, 12
D13S317    11, 12 / 8, 12
D16S539    11, 12 / 9, 11
TH         8, 9.3 / 8, 9.3
TPOX       8, 11 / 8, 11
CSF1PO    10, 11 / 11, 12

Based on these results, what is your opinion on paternity probability?  

Mother's results on same markers:

15, 17
11, 13
15, 18
22
13, 14
32.2, 35
18
10
11, 13
12
6, 8
11
11, 12

I am confused by genetic mutations and parentage versus kin/relation.  Is it common for paternal alleles to have more exact combinations (ie. vWA, TH, TPOX)  than maternal?

Please help me understand!  

Thanks!

by Lisa Kessler, MS, CGC, Dec 13, 2007 09:21PM
I am sorry that I cannot answer your question in the forum.  A genetic counselor could help you interpret your results in a consultation.  You can find a genetic counselor through the National Society of Genetic Counselors (NSGC) or through companies like mine, DNA Direct.
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