Albino
recessive · TYR
Standard Albino only. Candy, Toffee and compound TYR variants are not inputs; line-specific shade is not predicted.
Brown et al. (2022): three pigmentation morphs ↗
TAP. TRACK. THRIVE.
KeeperOS genetics lab · Python regius
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Tap genotypes above, or try an example, then calculate.Understand the odds
Each parent contributes one of its two alleles at each locus. A recessive trait needs two variant copies for its modeled visual form; one copy is a carrier, or het. Incomplete-dominant traits have single-copy and homozygous forms, often called supers.
Labels describe trait expression in isolation. Other traits can mask it, and combinations are not a photo or a guaranteed appearance. Yellow Belly complex single-copy animals can look very similar to wild type. A calculator cannot establish an animal's genotype.
Yellow Belly, Specter, Gravel and Asphalt share EDNRB2. A parent can have two different alleles at that locus, but never three. Their compound offspring are shown by allele names, without guessing a designer morph name.
This is hypothetical manual entry of confirmed genotypes. Unselected modeled loci are assumed wild type; missing animal records are not evidence of wild type. Different loci assort independently in this model. Linkage, uncertain parents, survival and health risks are not calculated. Use up to six loci across both parents, with at most 972 complete genotype outcomes.
Scope & evidence
Five recessive traits, three incomplete-dominant traits and four alleles in one complex. Aliases and combination names are not extra genes. Source-checked for this version; not reviewed by a human genetics expert.
recessive · TYR
Standard Albino only. Candy, Toffee and compound TYR variants are not inputs; line-specific shade is not predicted.
Brown et al. (2022): three pigmentation morphs ↗recessive · TFEC
White coverage is not predicted. No health or viability percentages.
Garcia-Elfring et al. (2023): Piebald and tfec ↗recessive · MC1R
Cryptic, Crypton and other MC1R variants are excluded.
Garcia-Elfring et al. (2025): Clown and MC1R ↗recessive · OCA2
Studied recessive model; appearance and interactions with other pigmentation morphs are not predicted.
Brown et al. (2022): three pigmentation morphs ↗recessive · TYRP1
Morph-level recessive model; does not distinguish molecular variants or predict shade.
Brown et al. (2022): three pigmentation morphs ↗incomplete dominant · PASTEL
Breeding-based model; no mapped molecular locus claimed here. Line quality and combined appearance are not predicted.
Markus Jayne: Super Pastel and Genetics 101 ↗incomplete dominant · ENCHI-SERIES
Breeding-based model of the one- and two-copy Enchi forms only. Relationships with other traits are out of scope for this version and are not modeled.
Markus Jayne: Super Enchi Yellow Belly Fire ↗incomplete dominant · ORANGE-DREAM
Breeding-based model; high-intensity and other line labels are not separate inputs.
Markus Jayne: Super Orange Dream ↗allelic series · EDNRB2
Two copies associated with near-white skin. Single-copy identification is unreliable; no exact combined appearance predicted.
Dao et al. (2023), replacement version: Yellowbelly series ↗Retraction and replacement notice (2023) ↗allelic series · EDNRB2
Same locus as Yellow Belly. Homozygotes associated with dorsal stripes; single-copy appearance is subtle.
Dao et al. (2023), replacement version: Yellowbelly series ↗Retraction and replacement notice (2023) ↗allelic series · EDNRB2
Same locus as Yellow Belly. Candidate splice-donor association; identification by appearance is unreliable.
Dao et al. (2023), replacement version: Yellowbelly series ↗Retraction and replacement notice (2023) ↗allelic series · EDNRB2
Same locus as Yellow Belly. Candidate splice-donor association; identification by appearance is unreliable.
Dao et al. (2023), replacement version: Yellowbelly series ↗Retraction and replacement notice (2023) ↗Desert Ghost, Genetic Stripe, Fire, Vanilla, Mojave, Lesser, Butter, Spark, Banana / Coral Glow, Axanthic strains, Spider, Cinnamon, Black Pastel, Cryptic, Candy, Toffee, line-bred traits and possible-het parents are not supported in this version.
The list is intentionally bounded. Desert Ghost line relationships, other allelic complexes and health-associated combinations need additional review. Unknown names are rejected, never silently discarded.
Research note: the Yellow Belly paper was replaced to correct gene names. This calculator uses EDNRB2 from the corrected version. Read the publication notice ↗