Just wanted to chime in and say that we agree Stinger and Zero are not recessive. We have bred Zero x Zero and Stinger x Stinger, as well as Zero x Normal and Stinger x Normal in multiple lines for several years, and proven that they are definitely not recessive genes. At this time, best guess is that they are markers for the Patternless gene, and some Patternless will produce Zeros/Stingers and some will not.
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