Turnaround time
10 workdays
48.4
40
Genetic test for the Clown variant in MC1R in ball pythons.

Overview
This analysis detects the MC1R variant c.149G>A associated with the Clown phenotype in the ball python. Animals with the Clown phenotype typically show larger and lighter lateral blotches, reduced dorsal patterning, and a distinctly altered head pattern.
The test helps determine whether the tested animal is free of the variant, a carrier, or positive for it. This can be especially useful for interpreting genetic status and planning responsible breeding combinations.
Clown is inherited as a recessive trait. This means that animals with one copy of the variant are typically carriers without showing the full characteristic phenotype, while animals with two copies are usually positive for the trait.
Other colour and pattern factors may still influence the final appearance. For that reason, the visible phenotype should always be interpreted together with the genetic result.
Included subanalyses
This analysis includes the following subanalysis:
Phenotypes
Allele combinations & result interpretations
Below, for each tested locus, you will find the possible allele combinations that may be reported within this analysis, together with a brief explanation of their genetic meaning. The interpretation of possible interactions between different loci is included in the report, but is not shown here in full because that would lead to too many combinations on this page. The final expression may also depend on other genes and their interaction.
Genotype / allele combination: GG
This animal does not carry the tested Clown-associated MC1R variant. It will not pass on the tested variant. Other colour and pattern factors can still influence the final appearance.
Genotype / allele combination: GA
This animal carries one copy of the tested Clown-associated MC1R variant. It can pass the variant to offspring. One copy does not usually explain the full Clown phenotype on its own, and other genetic factors can still shape the final pattern.
Genotype / allele combination: AA
This animal has the tested Clown-associated MC1R genotype. It will pass the tested variant to offspring. Visible intensity and pattern can still vary because of other genetic factors.
Sampling and submission guidelines






References