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Source(s): I eat 'em. Chitterlings / chitlin's are pig intestine and cracklin (or chicarones in Spanish) is fried pig skin with the fat and a bit of the skin on it. You see, there is 100% truth in the saying: You can everything but the oink. Genius Cook Â· 6 years ago.
(Redirected from Polygenic inheritance) A quantitative trait locus (QTL) is a section of DNA (the locus) that correlates with variation in a phenotype (the quantitative trait). Usually the QTL is linked to, or contains, the genes that control that phenotype.