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Five Myths about Ancestry DNA

Replies: 41

Re: Five Myths about Ancestry DNA

Posted: 17 Jan 2013 8:00PM GMT
Classification: Query
Concerning "1. My ethnicity should match my family tree", it's my sense that the reason one's genetic ethnicity might not match one's family tree is because of the random aspect of genetic contributions of a parent to their child. Fifty percent of the child's genetics come from the mother and 50% from the father, however, there's no guarantee that grandmothers are contributing 25% and grandfather's 25%. It's possible that the grandmother gets the full 50% contribution. It's a random thing. So, if grandma gets the lucky draw and contributes the full 50%, then grandpa gets nothing and his ethnicity is lost in the grandchild. Am I right or am I right? You can tell me I'm wrong. I'll learn from it.
SubjectAuthorDate Posted
ajmr1a1 7 Jan 2013 4:21PM GMT 
MJ782 7 Jan 2013 7:52PM GMT 
jbarry6899 7 Jan 2013 8:04PM GMT 
Nachalink123 7 Jan 2013 8:13PM GMT 
LeeHigdonNewe... 8 Jan 2013 3:29PM GMT 
pelusonorway 8 Jan 2013 11:16PM GMT 
SerenoaBarb 7 Jan 2013 2:43PM GMT 
pelusonorway 7 Jan 2013 3:44PM GMT 
Kelly McAllis... 18 Jan 2013 3:00AM GMT 
jbarry6899 18 Jan 2013 3:16AM GMT 
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