Which of the following statements concerning pollination drops is FALSE?
b. They contain proteins that function in pathogen defense.
c. They prevent pollen grains from contacting the nucellus.
d. They contain proteins that function in pollen development.
e. They exude from the open end of ovules.
29. Phylum Coniferophyta; p. 440; moderate; ans: b
In pines, the generative cell of the male gametophyte divides to produce:
b. one sterile cell and one spermatogenous cell.
c. one sterile cell and one sperm cell.
d. two spermatogenous cells.
e. two sterile cells.