Question

pietro has two dogs that are related, and he wants to understand why one of the dogs has tan fur and the other has brown fur. which pattern of inheritance would explain the different fur color in the related dogs? polygenic inheritance codominance incomplete dominance quantitative inheritance

Explanation:

• Polygenic inheritance: Traits like fur color can be influenced by multiple genes. Different combinations of alleles from these genes can lead to variations in fur color (tan or brown in this case).
• Codominance: Would show both traits simultaneously (e.g., patches of both colors if it were fur texture or something where both alleles are expressed at the same time in different parts, but not just two distinct solid colors like tan and brown as described).
• Incomplete dominance: Would result in an intermediate phenotype (e.g., a blend of tan and brown, like a light brown - beige, not two distinct colors).
• Quantitative inheritance: Similar to polygenic inheritance in that multiple genes are involved, but often more focused on continuous variation (like height in humans with a range of values) rather than distinct color differences like tan and brown. Polygenic inheritance is a more specific term for traits (like fur color here) controlled by multiple genes.

Answer:

polygenic inheritance