Give scientific reasons : Two types of fusions, syngamy and triple fusion take place in embryo sac.
After entering one of the synergids, the pollen tube releases the two male gametes into the cytoplasm of the synergid. One of the male gametes moves towards the egg cell and fuses with its nucleus thus completing the syngamy. This results in the formation of a diploid cell, the zygote. The other male gamete moves towards the two polar nuclei located in the central cell and fuses with them to produce a triploid primary endosperm nucleus $(PEN)$ (Figure $a$ ). As this involves the fusion of three haploid nuclei it is termed triple fusion. Since two types of fusions, syngamy and triple fusion take place in an embryo sac the phenomenon is termed double fertilisation,
The nuclei of the sperm and egg fuse as a result of
Fusion product of polar nuclei and male gamete is
Double fertilization involves
Identify the wrong statements
The total number of nuclei involved in double fertilization in angiosperms are