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Orthologous Gene

Any gene that can be found in two or more different species that can be traced back to the same common [[ ancestor.

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Locus specificity and ERVs - Q from a creationist

A question for geneticists - How essential is it that a gene or other section of DNA that performs a useful ... (ERVs) with an evolution-denier, who says that the ERVs that are apparently orthologous in, say, chimps and humans, are there because they infected both species independently ...

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by BarryDesborough
Sat Sep 07, 2013 2:49 pm
Forum: Genetics
Topic: Locus specificity and ERVs - Q from a creationist
Replies: 5
Views: 4312

Re: Theories - Origin of Life

... in G-C and C-G (collectively GC) and these regions tend to have more genes, and important genome features are dependent on these isochore regions ... lineage-specific SINE densities on rat chromosome 10 and in the mouse orthologous blocks, showing a stronger correlation than any other feature. ...

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by scottie
Tue Jan 03, 2012 12:15 pm
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1127953

How do scientists isolate genes?

I’m having trouble with the question(s). Time used to be that genes were identified by phenotype—and sometimes only by phenotype. Nowdays ... most likely there will be differences between any two homologous/orthologous sequences from different sources. The more closely related the ...

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by blcr11
Fri Aug 17, 2007 10:55 pm
Forum: Genetics
Topic: How do scientists isolate genes?
Replies: 1
Views: 5153

Orthologous and paralogous genes

... understand it the terms imply differences in evolutionary history. Two genes are paralogous if their common ancestor is within the same species. ... of two genes comes before two species diverged, then the two genes are orthologous. As to why it is important—I guess it matters most to people ...

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by blcr11
Fri Jun 01, 2007 2:48 pm
Forum: Molecular Biology
Topic: Orthologous and paralogous genes
Replies: 2
Views: 3394

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