Multiple choice Failure to generate Mullerian-inhibiting substance in a genetic male would lead in failure of formation of testes presence of a uterus breast development at puberty stoppage of virilization of phallus Reveal answer Fill a bubble to check yourself B Correct answer Explanation Mullerian-inhibiting substance prevents development of the Mullerian ducts into a uterus and fallopian tubes. Absence of the substance would lead to persistence of these structures in a male.