Coat color in horses is an example of polygenic inheritance. This is because the coat color is controlled by the interaction of multiple genes (in this case, the Extension and Agouti genes) which contribute to the phenotype in a complex manner.
Horses have three basic coat colors: red (or chestnut), bay, and black. All the colors are controlled by the interaction of two genes, Extension (E) and Agouti (A). The following combinations produce bay color: EE/Aa, Ee/Aa, EE/AA, Ee/AA. Only two produce black color: EE/aa, Ea/aa. Other combinations of the alleles of these genes plus mutations of others result in many possible coat colors and patterns in horses.
Coat color in horses is an example of which type of inheritance?
(1 point)
Responses
Mendelian inheritance
Mendelian inheritance
recessive inheritance
recessive inheritance
dominant inheritance
dominant inheritance
polygenic inheritance
1 answer