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Myth-Buster · Jun 2, 2026 · Citadel Culebra Faculty

Het, Poss-Het, and What the Percentages Mean

'66% het' does not mean 66% of the animal. The most misunderstood label on a price tag, decoded.

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Het, Poss-Het, and What the Percentages Mean
GeneticsBall PythonCorn SnakeMyths & Misconceptions

'Het,' 'poss het,' '66% het,' '50% het' — the labels look like precision but confuse nearly every new buyer. The percentage isn't about the animal in front of you; it's about the odds it carries a hidden gene. Knowing the difference protects your money and your pairings.

What this resource covers — what 'heterozygous' means, how possible-het percentages are calculated, proving out a het, and what you're really paying for.

This is a free entry in the Citadel Culebra Library, expanded continuously by our faculty. The complete write-up is on the way — and members get every new entry first inside Culebra Connect.

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