________ mark the pathways of sperm cell and sperm nucleus migrations within the ovule.
A) Actin "coronas"
B) Transmitting tissues
C) Callose deposits
D) Hydrated layers of proteins, amino acids, and lipids
E) Germ units
Correct Answer:
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Q30: In the process of double fertilization, one
Q31: In the process of pollination, the:
A)anther dehisces,
Q32: In the most common pattern of embryo
Q33: About 70% of living angiosperms have a(n)
Q34: _ are found at the chalazal end
Q36: The mature megagametophyte consists of _ nuclei
Q37: Sporopollenin is the primary constituent of the:
A)integument.
B)nucellar
Q38: The mature female gametophyte is called a(n):
A)embryo
Q39: In embryo sac development, the egg apparatus
Q40: Which of the following statements concerning pollen
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