MickeyB above, talks of an albinoxalbino mating that produced polecat phenotypes........
And go on, tell me the 'too complicated' right word. You never know, it might just wake up a sleeping part of my brain.
And I don't have to 'assume' anything. Science, and especially genetics, has moved on since a monk did things with sweet peas and fiddled the results Science isn't based on 'belief', it's based on verifiable fact. The interpretation of those facts can and does change as more evidence becomes available.
One thing I've found in 30odd years of involvement in science is that it