I know a few years back, a lot of people incorrectly were calling any mutation with a visually distinct heterozygous phenotype codominant (even if there had not been a homozygous form hatched yet). That poster may have heard them called codominant in the past. Lately though, it's shifted to more of a "dominant until proven otherwise" mentality, which is probably a better way to go about it...Originally Posted by dr del
Hi,
Not officially so far as I know - there are rumours of a homozygous spider and homozygous pinstripe - but neither is said to be visually different from the heterozygous form so they are still considered dominant.
Unless you have read something we haven't seen yet in which case please share?
dr del
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