Mating with multiple males

A lai e, three-generation family in whom multiple members are affected with a rare, undiagnosed disease is being studied. Affected males never produce affected children, but affected females do produce affected children of both sexes when they mate with unaffected males. What is the most likely mode of inheritance ... 

Whether a female actually mates with a given male is, of course, a function of many factors in addition to the presence or absence of male pheromone delivery. Multiple sensory modes of communication certainly affect reproductive receptivity in mammals (e.g., Whitten and Bronson,... 

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