EM-locus (melanistic mask)

The EM-locus is a variant of the E-locus that causes a dark mask. This mask is visible on light... more
Analysis reveals whether a dog with a mask has one or two copies of this version of the extension locus. Animals with a single copy can produce offspring with or without a mask, while those with two copies will only produce masked offspring. The test may also be applied to black dogs where it may not be possible to tell if there is a mask.
All breeds
autosomal dominant
Test duration
3-5 days after arrival of the sample in the lab
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