Recessive opal

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Recessive opal
Recessive Opal Bar
Recessive Opal Bar (with recessive opal grizzle in background).
Locus o locus
Genetic symbol o
Common name Recessive opal
Inheritance Autosomal recessive
Mutation type Colour modifier
Commonly found in breeds such as: Racing homer

Recessive opal is an allele at the o locus. This mutation is recessive to wild type.



Recessive opal is an autosomal recessive mutation. This means that both parents need to carry the mutant gene for it to express in the next generation. As a recessive mutation, it is possible for this trait to be carried by a bird who does not visually express it.


See also

Dominant opal - a visually similar but unrelated trait.