- Nov 24, 2013
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It is completely correct. Both the sire and dam influence the barring of the male offspring, hence my use of the word 'also'.
There are indeed many crosses that can result in a blue male with a single copy of barring, but none that you mention with a barred hen would allow the male to have the solid blue sisters pictured.
Your notation actually adds confusion because the female chromosome in chickens is W and not Y, and when giving the female genotype for any Z-linked trait, the non-applicable allele is denoted by a - (e.g., B-) and not a second letter.
There are indeed many crosses that can result in a blue male with a single copy of barring, but none that you mention with a barred hen would allow the male to have the solid blue sisters pictured.
Your notation actually adds confusion because the female chromosome in chickens is W and not Y, and when giving the female genotype for any Z-linked trait, the non-applicable allele is denoted by a - (e.g., B-) and not a second letter.
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