Fig. 1From: Confirmed effects of candidate variants for milk production, udder health, and udder morphology in dairy cattleDesign of the molecular test for a structural variant in a SNP chip (example of an insertion). Using the black arrow as a primer, the G allele reveals the insertion and the A allele the absence of insertion. A confirmation can be obtained with a second test on the other side of the insertion (primers = red arrows). Allele C reveals the insertion and T the absence of insertionBack to article page