Article · Jun 7, 2026 · Citadel Culebra Faculty

Dominant, Recessive, Co-Dom: Morph Genetics in Plain English

Punnett squares without the headache. How traits actually pass to the next generation.

GeneticsBall PythonLeopard GeckoBeginner Basics

Morph genetics scares people off with jargon, but the core ideas are simple and visual. Once you understand how dominant, recessive, and co-dominant traits behave, a whole catalog of pairings stops being magic and starts being math.

What this resource covers — alleles and genes, dominant vs. recessive vs. co-dominant, reading a Punnett square, het animals, and predicting clutch odds.

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.

Keep reading

Opinion

The Thermal Gradient: Hot Side, Cool Side, and Why It Matters

The Library is free, forever. Members get every new entry first — plus the courses, the community, and the faculty behind them.

Join the founding class →

Dominant, Recessive, Co-Dom: Morph Genetics in Plain English

The Ethics of Morphs: Spider, Enigma, and Neuro

The Shed Cycle, Start to Finish

Stuck Shed and Retained Eye Caps: A Rescue Guide

The Thermal Gradient: Hot Side, Cool Side, and Why It Matters