Multiple choice

In ______, the stigma of the flower matures before the anthers.

  1. protogyny

  2. protandry

  3. herkogamy

  4. 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.