Double fertilization is when one pollen sperm makes the zygote, and the other fuses with two polar nuclei to make the endosperm—that's the triple fusion. The ploidy? The baby plant is diploid, but that food source, the endosperm, ends up triploid.
See, I don't think about chromosomes when buying hybrid maize seed; I think about which brand's endosperm packs more energy for the seedling. The plump kernels from 'Pioneer' mean a stronger first rain, and that's the real science for me.
#food
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