Multiple choice Failure to produce Mullerian-inhibiting substance in a human male would result in deficit of formation of a testis breast development in human males at puberty deficit of virilization of the phallus presence of a uterus Reveal answer Fill a bubble to check yourself D Correct answer Explanation Mullerian-inhibiting substance prevents development of Mullerian ducts into a uterus and fallopian tubes. Absence of the substance would lead to persistence of these structures in a male.