Occurs in bisexual or unisexual, transfer of the pollen grain from anther of a flower to the stigma of another flower on another plant but of same species
More variation, offspring will become more heterozygous
Variation due to mutation has higher chance to be expressed
More adaptation to new environmental conditions, more selection and evolution, decrease in competition, increase survival chance, increase gene pool and genetic diversity, reduce risk of extinction
1. Water will enter through the micropyle where in presence of optimum temperature, enzymes become activated and they start to break down food storage
2. More water will enter the seed, so it swells and seed testa will split, allow oxygen to diffuse into the seed, used for aerobic respiration to release energy for cell division and forming new molecules