試題詳解

16. It is usually advantageous to a species if the offspring of a sporophyte are genetically different than the parent sporophyte. Which of the following would be the least likely to ensure genetically different offspring?
(A) Pistil and stamens within a flower mature at different times.
(B) The pollen produced on a plant cannot germinate on stigmas on the same plant.
(C) The species is dioecious.
(D) The species is monoecious.
(E) The plant is pollinated by bees.