So an awesome set of researchers figured out the Yellowbelly complex and can reliably test for it using a shed skin.
What seems to be even more interesting for me is that there's actually two sets of genes responsible for yellowbelly and ivory. An Ivory can happen with one of each or a double of one with the same result.
More reading in the link
https://www.morphmarket.com/blog/202...sts-available/
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