You are studying a plant from the Amazon rain forest that shows strong self-incompatibility. To characterize this reproductive mechanism, you would look for
A) ribonuclease (RNAase) activity in stigma cells.
B) RNA in the plants.
C) pollen grains with very thick walls.
D) carpels that cannot produce eggs by meiosis.
E) systems of wind, but not insect, pollination.

Question

Quizplus · Accepted Answer

Ribonuclease (RNAase) activity in stigma cells is a common mechanism in self-incompatibility where the RNAase degrades the pollen RNA, preventing fertilization. This mechanism ensures cross-pollination and genetic diversity in the population.

You Are Studying a Plant from the Amazon Rain Forest