Bp snake genes have me scratching my head

My bp was sold as a single spotnose but his dad is a pastel spotnose yellowbelly and his mother is a fire, my question is could there be some of these genes in my bp? If so how could I tell would it just be a case of having to breed to find out?

It could be all, any, or none of those genes.

Basically a 50/50 shot on any of those being passed down from a parent.

But any of those genes will affect the appearance so you would know if he had some of the others. He might have just gotten the spotnose from the sire and nothing from the female.

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Posting a picture will be the first step for identification Guide in asking for Morph Identification Help

However it is very likely that your animal is simply a Spotnose, other genes would be easy for the breeder that produced the animal to identify if present.


Yeah he just said it was spotnose but I’ve been reading and i think you can see some of the fire in him with the brown colouring

Post a picture and I am sure @wreckroomsnakes among others will have no issue chiming in since she has produced many Spotnose combos.

So I’ve managed to get these pics, it’s amazing what sunlight does for a bp colouring he a beauty,

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There is no Fire in that animals. It is just a single gene Spotnose


Agree. I own a fire spotnose. Yours looks like a single gene spotnose.

I love spotnose. Beautiful snake you’ve got there!


He sure is, I’m not bothered what morph he is I’m looking into morphs and i just cant get my head round it haha, so to get a single gene spotnose from pastel spotnose yb and a fire then the spot nose must be the dom gene is his father but could he be het for fire?

Fire, pastel, spotnose, and yellowbelly are all incomplete dominant traits. Which means… your snake can’t be “het” for those genes like they would with piebald or clown. They either have it or they don’t.

The heterozygous form would show visually in the snake, but since he simply doesn’t have those genes, he shows as just a spotnose.
If you pair incomplete dominant genes together, you could get the homozygous or “super” form which usually also produces a different look. Examples being super yellowbelly producing an ivory, and super fire producing a black eyed leucistic.


In agreement no fire here or any other genes involved.

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like i said im brand new to all this stuff and i appreciate all the info you guys give me, thanks for explaining

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It’s pretty overwhelming at first but if you just play with some genetics calculators you’ll get to a base level of knowledge that will give you an idea of what you like and how it all works together


i put the morphs of his folks into the calculator on MM and it came out that there wouldnt be any single gene spotnose thats what made me ask haha

Here is an example of a fire spotnose if this helps any. No fire in your baby.It is a good example of a single gene spotnose though :wink:


either way hes a good bp ive had him 7 days did what you said about blocking his view and i noticed that he was out and about looking for food so i defrosted a medium mouse and he was on it like a tramp on chips

yeah its night and day lol!

You must have input the parents incorrectly:


ah yeah i put dad first then mother

im liking pastel spotnose yellow bellys maybe a project for the future