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An incompletely dominant gene controls the plumage of chickens.
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Black plumage and white plumage are due to homozygous genotype and blue -gray color results from a heterozygous genotype.
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What type of offspring and in what ratio do you expect from a cross between a black and white chicken? okay, so first to answer this, we need to figure out the genotypes of our chicken.
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So we have a black chicken, and it tells us that black are due to homozygous.
00:32
Genotypes.
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So let's see, i will use, we're talking about plumage here, so i will use the letter p.
00:39
So our black chicken is homozygous dominant.
00:45
Has that homozygous genotype.
00:49
And it tells us that black and white are both homozygous, but they're opposite phenotypes.
00:56
So that means one has to be dominant and one has to be recessive.
00:59
So black would be dominant.
01:01
And then we have a white chicken who is also homozygous, but is opposite...