a. What do you mean by triple fusion?
b. Define double fertilization.
c. What is the fate of the following after fertilization:
i. Calyx.
ii. Integuments
iii. Egg cell
iv. Ovary
d. Name the coverings of the pollen grain.
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What do you mean by triple fusion?
Triple fusion is the fertilization of the two polar nuclei in the embryo sac. It occurs during the double fertilization of angiosperms. While one sperm cell fertilizes the egg cell in the embryo sac, the other sperm cell fertilizes the two polar nuclei found in the central cell.
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