Multiple choice In ______, the stigma of the flower matures before the anthers. protogyny protandry herkogamy heterostyly Reveal answer Fill a bubble to check yourself A Correct answer Explanation Protogyny is the condition where the stigma matures and becomes receptive before the anthers have matured and released pollen. This temporal sequence prevents self-pollination within the same flower. Protandry is the opposite condition.