>I thought for a while these cats were leucistic too, then I read they are dominant whites, so it is just maybe hard for me now to wrap my brain around them being dominant leucistic. : )

I never heard of anything called "leucistic" until Bechtel came up with the name for the TX rat snake mutant. The cat mutant was named decades earlier. Your guess is as good as mine as to whether the two mutants have any biochemical similarity.

In the lab mouse, there is a recessive yellow mutant at the e locus and a dominant yellow mutant at the a locus. How's that for something hard to wrap your brain around?

Paul Hollander

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