Double fertilization is exhibited by:
Gymnosperms
Algae
Fungi
Angiosperms
As we discussed in concept
Primary Endosperm Cell (PEC) -
Since two types of fusions, syngamy and triple fusion take place in an embryo sac the phenomenon is termed double fertilisation, an event unique to flowering plants. The central cell after triple fusion becomes the primary endosperm cell (PEC) and develops into the endosperm while the zygote develops into an embryo.
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Double fertilization is unique to flowering plants, angiosperms.
Option 1)
Gymnosperms
This option is incorrect.
Option 2)
Algae
This option is incorrect.
Option 3)
Fungi
This option is incorrect.
Option 4)
Angiosperms
This option is correct.