The following coat colors are known to be determined by alleles at one locus in horses: Palomino = golden coat; Cremello = almost white; Chestnut = brown. The following table gives the ratios obtained in matings of the above varieties:

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asked 12 years ago in Biology by anonymous

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The following coat colors are known to be determined by alleles at one locus in horses: Palomino = golden coat; Cremello = almost white; Chestnut = brown. The following table gives the ratios obtained in matings of the above varieties:

asked 12 years ago in Biology by anonymous

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In the purple penguin, a series of alleles occurs at the p locus on an autosome. All alleles affect the color of the feathers. pd = dark-purple; pm = medium-purple; pl = light-purple; pvl = very pale-purple. The order of dominance is pd > pm > pl > pvl. If a light-purple female (heterozygous for very pale-purple), is crossed to a dark-purple male (heterozygous for the medium-purple), the ratio of phenotypes expected among the baby penguins would be:

asked 12 years ago in Biology by anonymous

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What phenotypic or genotypic ratios typically result from crosses dealing with a single genetic locus?

asked 12 years ago in Biology by anonymous