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Ruby's father has curly hair and her mother has straight hair. Ruby, however, has wavy hair. What could be the reason for this?. . A. Ruby's wavy hair is a blend of curly and straight hair.. . B. The gene for curly hair has multiple alleles, and Ruby has the allele for wavy hair. . . C. Ruby inherited both alleles, which are incompletely dominant.

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The reason behind this is that Ruby inherited both alleles, which are incompletely dominant. The correct option among all the options that are given in the question is the third option or option "C". I hope that this is the answer that has actually come to your great help.

Answer:

The correct answer would be option C.

Incomplete dominance is a type of allelic interaction in which neither of the alleles is able to complete dominance over the another.

It results in the blending of the two phenotypes.

For example, a cross between red and white flower plants results in the production of pink flower plant, that is, blending of red and white phenotype.

Similarly, hair type also shows the same type of inheritance in which the blending of curly and straight hair results in wavy hairs.

The same is explained below the help of Punnett square.

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