Every gene on Breeders Direct — what it is, how it is inherited, and which species carry it
Yellow Belly complex allele; combos create Freeway with YB
Yellow Belly complex allele interactions (Freeway/Highway 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/absent yellow pigment (grayscale appearance)
Axanthic lines are generally incompatible across lines
Recessive: Requires two copies to express
Yellow and lavender body coloration, often develops brown freckles as it ages
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.
Subtle brown tone differences; perhaps reduced orange / yellow in pattern; sometimes noticeable white on tail at hatch; affects coloration and pattern intensity.
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.
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
Yellowish coat color
Recessive: Requires two copies to express
Yellow Belly complex allele; combos create Highway with YB
Yellow Belly complex allele interactions (Freeway/Highway 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.
Enhances yellows and pattern 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.
Yellow Belly complex allele
Yellow Belly complex allele interactions
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.
Combination of hypomelanism and albino, leading to vibrant yellow or orange colors.
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.
A recessive trait that lightens the belly color, often to a creamy or yellowish hue.
Recessive: Requires two copies to express
A gene founded in South Africa characterized by a lack of pattern and muted color, resulting in a washed-out appearance, often described as earthy brown or a light pastel yellow.
Recessive: Requires two copies to express
Yellow is a color trait—a visible characteristic (phenotype) based on pigmentation, such as feather color, scale color, or fur.
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.
Enhances flames/checkering; in super produces Ivory
Yellow Belly complex allele interactions (Freeway/Highway 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.
