A) Fusion of male gamete with antipodal cell
B) Fusion of male gamete with synergid cell
C) Fusion between egg and male gamete
D) Fusion of one male gamete with egg cell and another with secondary nucleus
Correct Answer: D
Solution :
Double fertilisation is the unique feature of flowering plants, where by, from a single pollen grain, the two sperm nuclei within the pollen tube fuse with different nuclei within the embryo sac of the ovule. Fusion of one sperm with egg cell nucleus forms zygote and the fusion of other sperm with diploid secondary nucleus form triploid primary endosperm nucleus.
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