試題詳解

【已刪除】57. For the reproduction of flowering plants, double fertilization:
(A) is characteristic of all plants.
(B) produces a triploid sporophyte and a diploid endosperm.
(C) results in the fertilization of egg by sperm and polar nuclei by pollen tube nucleus.
(D) results from the fusion of the male and female sporophytes of angiosperms.
(E) 送分 .