What is the fate of the seven cells of the embryo sac?
A) All but one disintegrates upon fertilization.
B) Two become fertilized;the others degenerate.
C) Two become fertilized;the others fuse to form endosperm.
D) All are involved in nuclear fusion events.
E) All become part of the seed tissue.
Correct Answer:
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Q25: After pollination,which event is crucial for fertilization?
A)
Q26: A seed consists of a _ embryo,
Q26: You are observing two plots of tobacco
Q28: A scientist has perfected a technique for
Q28: In flowering plants, fertilization occurs
A) where pollen
Q29: After fertilization of the egg, the integument
Q30: Some wind-dispersed seeds use _ to help
Q31: The endosperm is formed by a fusion
Q32: Which statement about a genetically self-incompatible species
Q54: Angiosperm seeds develop
A) on a normal leaf.
B)
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