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The genetics
Albino
RecessiveAlbino is a recessive, amelanistic mutation in which melanin is absent entirely. The normal blotched pattern stays visible but loses all black pigment, leaving red, orange, or yellow tones with red eyes.
Sable
RecessiveSable is a recessive mutation that increases melanin production, producing a darker, richer brown snake than normal. It's often bred into lighter morphs like Albino specifically to deepen contrast. They typically have 2 clear scales under their chin, creating a heart shape.
Pink Pastel Albino
RecessivePink Pastel Albino is a recessive, tyrosinase-positive (T+) form of albino, distinct from Lavender, producing a pink-to-red toned snake.
Anaconda
Incomplete DominantAnaconda, often shortened to Conda, is an incomplete-dominant pattern mutation. One copy reduces the normal blotched dorsal pattern, creating a cleaner, more open, simplified appearance — the pattern becomes reduced, broken, or simplified.
What makes a Opal
- Two copies of Albino — recessive, so it only shows when paired up.
- Two copies of Sable — recessive, so it only shows when paired up.
- Two copies of Pink Pastel Albino — recessive, so it only shows when paired up.
- One copy of Anaconda — the single-gene form.
This describes the genetics of the animal itself — not the odds from a pairing. Outcome odds are the Genetics Calculator's job (coming soon).
Be the first to add a Opal photo
Help build the guide — got a clear, full-body photo of a real one? Add it to the Genetics Lab and get credited. Every photo is reviewed before it appears.