A white cow was mated with a red cow, and they had an offspring who was roan-the calf had an even mixture of white hairs and red hairs covering her body. What is the most likely explanation of the inheritance of the roan coat?
A. incomplete dominance
B. red is dominant and white is recessive
C. pleiotropy
D. X-linked dominance
E. red and white are codominant
Answer: E
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