Horses have three basic coat colors: red (or chestnut), bay, and black. All the colors are controlled by the interaction of two genes, called Extension (E) and Agouti (A). The following combinations produce the bay color: EE/Aa, EeAa, EE/AA, and Ee/AA. Only two produce black color: EE/aa and Ea/aa. Other combinations of the alleles of these genes plus mutations of other genes result in many possible coat colors and patterns in horses.What type of inheritance does coat color in horses represent?(1 point)Responsesdominant inheritancedominant inheritancepolygenic inheritancepolygenic inheritancemendelian inheritancemendelian inheritancerecessive inheritance

Question

Horses have three basic coat colors: red (or chestnut), bay, and black.  All the colors are controlled by the interaction of two genes, called Extension (E) and Agouti (A). The following combinations produce the bay color: EE/Aa, EeAa, EE/AA, and Ee/AA. Only two produce black color: EE/aa and Ea/aa. Other combinations of the alleles of these genes plus mutations of other genes result in many possible coat colors and patterns in horses.What type of inheritance does coat color in horses represent?(1 point)Responsesdominant inheritancedominant inheritancepolygenic inheritancepolygenic inheritancemendelian inheritancemendelian inheritancerecessive inheritance

GPT-4o mini · Answer

The coat color in horses represents **polygenic inheritance**. This is because the colors are controlled by the interaction of two genes (Extension and Agouti), and multiple combinations of alleles can produce different phenotypes. Therefore, the correct response is **polygenic inheritance**.