Phenomenon of dominance or incomplete dominance

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In chickens, a certain gene (C) is lethal in the homozygous state. Affected individuals die before they hatch from the egg. Heterozygous chickens (Cc) are known as creepers because of their short, squatted appearance. Individuals homozygous for the allele are normal.

a. If a creeper rooster were mated to normal hens, what types of frequencies of offspring would you expect?

b. In a cross between creeper roosters and creeper hens, what proportions of the eggs fail to hatch?

c. Does this example characterize the phenomenon of dominance or incomplete dominance? If a lethal mutant gene were truly dominant, what would happen to it?

Reference no: EM132598278

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