Liz
I am not a chemist and this is not my 1st rodeo
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- Jun 7, 2004
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Defense: DNA doesnt specifically ID Wilson in Cowell murder
WENATCHEE The DNA used to link murder suspect Christopher Scott Wilson to the killing of Mackenzie Cowell could match more than 90,000 males in the United States and dozens right here in North Central Washington, Wilsons defense attorney said Thursday.
Public Defender Keith Howard said the Y-STR test method, which compared DNA from duct tape found near Cowells body with a swab given by Wilson, does not identify suspects with 100 percent accuracy.
The problem here is the testing they did wasnt specific, Howard said.
... It only shows the male parental line.
~snipped~
The Y chromosome is directly inherited from father to son, Heath wrote in an e-mail. Therefore, all men in the same paternal line will have the same Y-STR profile. As a result of this, the statistics for Y-STR testing are not nearly as strong as those for regular DNA testing.
BBM
Full article at link:
http://www.wenatcheeworld.com/news/2010/oct/29/defense-lawyer-dna-evidence-doesnt-specifically/
WENATCHEE The DNA used to link murder suspect Christopher Scott Wilson to the killing of Mackenzie Cowell could match more than 90,000 males in the United States and dozens right here in North Central Washington, Wilsons defense attorney said Thursday.
Public Defender Keith Howard said the Y-STR test method, which compared DNA from duct tape found near Cowells body with a swab given by Wilson, does not identify suspects with 100 percent accuracy.
The problem here is the testing they did wasnt specific, Howard said.
... It only shows the male parental line.
~snipped~
The Y chromosome is directly inherited from father to son, Heath wrote in an e-mail. Therefore, all men in the same paternal line will have the same Y-STR profile. As a result of this, the statistics for Y-STR testing are not nearly as strong as those for regular DNA testing.
BBM
Full article at link:
http://www.wenatcheeworld.com/news/2010/oct/29/defense-lawyer-dna-evidence-doesnt-specifically/