How could the breeder know if the bird is Heteroygote or Homozygote for the red color?

Question by tigerkiss9: How could the breeder know if the bird is Heteroygote or Homozygote for the red color?
In certain bird species, the dominant red color is dominant over white color. A bird breeder bought a red bird for breeding purposes. How could the breeder know if the bird is heterozygote or homozygote for the red color?

Best answer:

Answer by Steve
Breed the bird with a white bird. By statistics standards, if it is indeed a HeteroZygote, then half the birds created will be white. If it is homozygote with the dominant gene, then all the birds will be red.

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How could the breeder know if the bird is Heteroygote or Homozygote for the red color?

Posted by admin | Posted in Bird Feeders | Posted on 27-01-2011

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Comments (1)

From the phenotype, the appearance, there is no way to tell. The only way is to cross it to birds of known genotype, and even then the results of the cross are random, i.e. crossing to a bird with double recessive genes will still, possibly, produce all red birds in the offspring, even if the bird you’re trying to find out about is heterozygous, you could just get lucky / unlucky and produce all red offspring.

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