Quote Originally Posted by Seven-Thirty View Post
https://jkrballstreetjournal.com/201...-ball-pythons/
https://www.youtube.com/watch?v=Zf3FG_QXEf8&app=desktop

From these two I gathered that spider and black head are allelic but without first hand experience myself I could always be wrong.
This is some interesting stuff. I was totally unaware of it. If I had to bet I would have said the this group of genes were allelic however I did not think there was a way to prove it. I didn't realize blackhead was involved in the mentioned grouping. This changes my though process a little.