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Old 05-16-2016, 11:27 PM   #4
Jafar Jabbari
Location: Melbourne

Join Date: Jan 2013
Posts: 1,238

Another name for cross dimer is primer-dimer.

11. Avoid Cross Homology: To improve specificity of the primers it is necessary to avoid regions of homology. Primers designed for a sequence must not amplify other genes in the mixture. Commonly, primers are designed and then BLASTed to test the specificity.

Basically it refers to specificity of primer. Most primers will amplify non-target regions if there is enough homology in 3 region under submissive conditions.
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