lol you read it really?
Read past the OPFrom this breeding, we get a 1:1 ratio of animals with a ZcZ+ genotype to animals with a Z+W genotype. All of these animals express the wild-type phenotype. Because all of the females get their W-chromosome from the mother and their Z-chromosome from the father, none of them carry the coral glow mutation. However, any males in the clutch will be heterozygous for coral glow because all of them will get one Z-chromosome containing the mutation for coral glow from the mother. Note that it is IMPOSSIBLE to obtain a female expressing the wild-type phenotype to carry a mutant Z-linked allele - therefore, there is no such thing as a female het coral glow.
Now we have hundreds of instances.
You posted a few links that do not explain the anomaly we are seeing and an explanation that goes against all available information.![]()