Andalusian chickens show incomplete dominance for feather color. a cross between a white bird and a black bird produces offspring that have blue feathers

Even with this result that, the cross between white and black birds produces offspring that have blue feather doesn't make a blue feathers chicken a purebred, but because they have different alleles. In some cases a cross breed between F1 blue chicken gives blue chicken majorly and few white or black chickens.

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luisvaschetto luisvaschetto · Answer 2 · 2022-03-08T12:03:15+01:00

Blue feathered chickens are NOT purebred because they have different alleles.

What is incomplete dominance?

Incomplete dominance is a genetic phenomenon where there both alleles are expressed in heterozygous individuals.

A heterozygous is an individual that carries two different alleles for a given gene locus.

Conversely, complete dominance occurs when the recessive allele is masked by the dominant allele.

In conclusion, blue feathered chickens are NOT purebred because they have different alleles.

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