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![]() | #91 | |
Donating YT 10K Club Member Join Date: Jul 2004 Location: Alabama
Posts: 17,674
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I, for one, have found this to be a very interesting subject. I am glad that the member csagan101 brought this topic up and would like to see the some sort of documentation that gives substantial proof that the Mars testing has any validity. | |
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Welcome Guest! | |
![]() | #92 | |
Yorkie Yakker Join Date: Aug 2009 Location: Santa Fe
Posts: 42
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![]() | #93 |
Dogs Rule Cats Drool! Donating Member Join Date: Jan 2006 Location: Tennessee
Posts: 7,895
| ![]() I am not a member of any of the Biewer clubs, haven't decided yet, but it does upset me being a owner of these great dogs, that everyone is in such disagreement, I wish that for once everyone could get along to help the Biewers and see them become the best they can be & should be. They are great furbabies! As for the test, I wish they could show some different markers for dieases and other problems, but right now it sounds to me like someone is just taking everyone's money ![]()
__________________ KIM ![]() |
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![]() | #94 | |
Yorkie Yakker Join Date: Aug 2009 Location: Santa Fe
Posts: 42
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![]() | #95 |
YorkieTalk Newbie! Join Date: Aug 2010 Location: argonout
Posts: 2
| ![]() Any new info about this subject yet? |
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![]() | #96 |
YorkieTalk Newbie! Join Date: Jan 2011 Location: Madison, WI, USA
Posts: 1
| ![]() I'm not a dog breeder. I'm a mutt owner trying to find out whether the test is worth doing just for fun. I also have a PhD in molecular genetics, and know the fairly simple reason these tests can't be used to identify purebred animals: Ancestry tests (including human ones) do not sequence the entire genome, nor do they test for phenotypic traits. Genes for things like hair color are too similar, even in differently colored animals, to be used in this type of test. Test makers identify snippets of the more variable "non-coding" DNA that are specific to a breed. The more snippets of DNA specific for a given breed are included in the test, the more accurately the test will identify the proportion of the ancestry attributable to that breed. However, these pieces of DNA are a tiny fraction of the entire genome, so the test could never "prove" that a dog was a purebred. It could only identify a single breed as the source of the snippets that were tested. Why couldn't the test makers explain this? |
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![]() | #97 |
YT 500 Club Member Join Date: Feb 2009 Location: sunny california
Posts: 968
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