Calculator

Select Parent Animals

Click in the Parent 1 and Parent 2 fields to choose mutations or combinations.
You can search by name or directly select a combination from the list.
Only select the mutations that the hognose snake actually carries (visually or het).

Calculating the Outcome

Once both parents are selected, the calculator automatically determines the possible genetic outcomes.
In the table, you will see for each combination:

• The probability ratio (e.g., 1/4 (25%)).
• The traits (all possible mutations that may occur).
• The combination name, if a known name exists (such as “Sunburst”, “Candy Cocktail”, etc.).
• Each result displays the traits with a color label:
  Orange = recessive
  Gray = heterozygous
  Yellow = possible heterozygous
  Green = incomplete dominant
  Purple = dominant
  Blue = polygenic

Using the Toggle

With the Merged (50%/66% Possible Het) toggle, you can decide how possible carriers are displayed.
When you turn it on, potential het combinations are summarized as “50% het” or “66% het.”
When you turn it off, all individual genetic variants are displayed in full.

Clear or Start Over

Click Clear to remove all selections and start again.

Combination Names

All combination names shown in the calculator are names commonly used for specific color and pattern combinations. On our collection page, you can find these combination names with explanations and photos of our own animals. For additional examples and detailed descriptions, you can also visit Hognose Morphs.

Tips

• You can also enter combinations using common “combo” names (such as Sunburst or Maitai).
• The label colors in the calculator correspond to the same colors used in the available animals section on our website.
• Use the calculator as a helpful tool — genetics is always a matter of probability, not a guarantee.

Inheritance per Gene

Each offspring receives one copy of every gene from each parent.

• With one copy, the animal is called heterozygous (abbreviated as het).
• With two copies of the same gene, it is called homozygous, also known as the “super form” for incomplete dominant genes.

The combination of all genes together forms the genotype (the genetic makeup),
while the color and pattern you see represent the phenotype (the visible appearance).

Recessive

A recessive gene is only visible when the animal carries two copies of that gene.
To produce recessive offspring, both parents must carry the gene, even if only as carriers (het).
Example: Albino

Incomplete Dominant

An incomplete dominant gene is visible with one copy but looks different with two copies.
Both forms have their own appearance.
Example: one copy Anaconda, two copies Superconda

Dominant

A dominant gene is visible with one copy and looks the same with two copies.
The genetic makeup may differ, but the appearance remains the same.
Example: Cinnamon

Polygenic

Some traits are polygenic.
They are influenced by multiple genes and by selective breeding, which results in a wider variation in color and pattern.
Such traits do not follow a simple inheritance pattern, which is why the calculator displays them as a possible trait.
Polygenic color traits are often strengthened through line breeding, by repeatedly pairing animals with the most desirable expression of the trait.
Example: Lemon Ghost