I'm trying to figure out if the Red axanthic is a Co-dom or Resessive gene. Over at TSK they have one for sale. The mother is listed as a Het Red Axanthic which points the trait out as a resessive gene, but the father is a black back and no mention of being het anything. This makes me wonder. Is blackback a super form of red axanthic or does it take red axanthic and something else to make a black back? Just curious to see if anyone knows.