Practice question

Geitonogamy describes pollination accomplished between different flowers situated on same individual plant, facilitated when pollinators such as bumblebees, honeybees or wind carry pollen from one blossom to another on same genet. Although physically involving two flowers resembling cross-pollination, genetically equivalent to selfing because male and female gametes originate from same sporophyte sharing identical genome, thus no new allelic diversity introduced and inbreeding coefficient equivalent to autogamy. Distinguished from xenogamy where pollen arrives from distinct plant genotype. Monoecious species like maize with separate male tassel and female ear, cucurbits, many orchids exhibit frequent geitonogamy leading to mixed mating system. Population genetics treat it as selfing proportion when estimating outcrossing rate via allozyme markers. This understanding supports competitive exam preparation for NEET, GATE and CSIR NET concepts linking genotype with phenotype through molecular pathways involving transcription factors, hormones and metabolic enzymes that regulate development, adaptation and reproductive biology in applied breeding programs.