Reptile Morph & Gene Library — Inheritance, Zygosities and Descriptions

Caramel-colored phenotype

Recessive: Requires two copies to express

Caramel Albino is a recessive color morph in Dumeril’s boas that greatly reduces dark pigment, turning the snake’s usual brown-and-black look into warm cream/yellow/tan “caramel” tones with a softer, lower-contrast pattern (often with lighter eyes and possible mild light sensitivity).

possible mild light sensitivity

Recessive: Requires two copies to express

Alternate anerythristic line distinct from Anery A

Recessive: Requires two copies to express

Brown-toned color enhancer

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Smoky grayscale with unique head pattern

Recessive: Requires two copies to express

Darkening gene; super can be very dark

Super Cinnamon may have kink/fertility concerns

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Not written up yet.

Polygenic: Determined by multiple genes

Pattern-reducing recessive with bold headstamp

Recessive: Requires two copies to express

Genetic Stripe is usually a Recessive gene, in Bearded Dragons it only takes one copy for the gene to appear however it is usually a lower expression or quality stripe.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Example: Ball Pythons (Blue-Eyed Leucistic [BEL] & Black-Eyed Leucistic) The BEL complex includes co-dominant genes like Mojave, Lesser, Butter, Russo, Phantom. If an animal inherits one copy, it has a different morph (e.g., Mojave). If an animal inherits two copies of compatible genes (e.g., Mojave × Mojave), it becomes a super form—a pure white "Blue-Eyed Leucistic" (BEL) or "Black-Eyed Leucistic" (depending on the genes).

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Excessive melanin, resulting in an all-black or darker appearance.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Example: Boa Constrictors (Motley Morph) Incomplete Dominant (Co-Dominant) – One copy alters the pattern, while two copies (super form) create a more extreme Motley look. In boas, Motley creates a connected or reduced saddle pattern along the back.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Example: Scaleless-Head Ball Python One copy (heterozygous): The snake has a reduced number of scales, particularly on the head. Two copies (homozygous, "Super Scaleless-Head"): The snake is completely scaleless. This means Scaleless-Head is an incomplete dominant (co-dominant) gene, where the super form is fully scaleless.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Reticulate pattern resembling snake skin

Polygenic: Determined by multiple genes

Similar to Acid, dark, chaotic pattern.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Intensifies orange/pink/red hues. Often shows best in combos.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Reduced webbing between fin rays

Polygenic: Determined by multiple genes

Tight pattern, high contrast.

Co-Dominant: One copy is visibly expressed. Two copies produce a distinct "super" form, which differs from gene to gene — see the individual gene for what its super looks like.

Spots of varying size and number, appearing anywhere on the body; can appear as animal ages.

Line bred colour trait: A line-bred color trait refers to a specific color characteristic in animals that is maintained or intensified through line breeding.

True enhancing recessive that brightens and cleans pattern

Recessive: Requires two copies to express

Eliminates belly checkers; deeper reds

Recessive: Requires two copies to express

Overall washed-out reduction of pigments

Recessive: Requires two copies to express

Thick metallic-looking scales

Heavy scaling can grow over the eyes ("diamond eye") and cause progressive blindness. Watch eye condition in dragon-scale lines.

Polygenic: Determined by multiple genes

Pattern mutation causing chaotic scalation direction

Dominant: Single gene sufficient to express