Changes

ERV's are usually species specific, insert almost randomly in the host genome, and the error or mutation that inactivated the gene is random. Because of these factors if two organisms share the same ERV, in the same location with the same inactivation mutations then they must share them due to common inheritance and not two separate infections. This fact has allowed for analysis of shared ERV insertions across species in order to construct [[phylogenetic trees]].

ERV's are usually species specific, insert almost randomly in the host genome, and the error or mutation that inactivated the gene is random. Because of these factors if two organisms share the same ERV, in the same location with the same inactivation mutations then they must share them due to common inheritance and not two separate infections. This fact has allowed for analysis of shared ERV insertions across species in order to construct [[phylogenetic trees]].

Creationists assert that endogenous retroviruses are invalid as evidence for the [[common descent]].<ref>http://www.trueorigin.org/theobald1e.asp</ref><ref>http://www.answersingenesis.org/articles/am/v1/n2/were-retroviruses-created-good</ref><ref>http://www.answersingenesis.org/docs2006/1219herv.asp</ref>

Creationists assert that endogenous retroviruses are invalid as evidence for [[common descent]].<ref>http://www.trueorigin.org/theobald1e.asp</ref><ref>http://www.answersingenesis.org/articles/am/v1/n2/were-retroviruses-created-good</ref><ref>http://www.answersingenesis.org/docs2006/1219herv.asp</ref>

==See also==

==See also==