Question

single gene for white coloring on the coats of dogs has four alleles with a hierarchy of dominance. Various combinations of these alleles can lead to solid coat, Irish-spotting, piebald-spotting, and white coats. This inheritance pattern for white coloring is due to the existence of ______ for the gene for coat coloring.

Answer 1

The inheritance pattern for white coloring is due to the existence of MULTIPLE alleles for the gene for coat coloring. It leads to the expression of different phenotypes.

Multiple alleles and inheritance

An allele is a gene variant for a given gene locus, diploid organisms inherit one allele from the mother and another from the father.

An individual is homo-zygous when both alleles for a given locus are the same, whereas an individual is heterozygous when both alleles for a given locus are different.

The combination of multiple alleles in a given locus may lead to the expression of different phenotypes.

Learn more about multiple alleles here:

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