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Pollen sterility refers to the inability of pollen grains to function properly in fertilization, leading to reduced or no seed formation. It is an important phenomenon studied in plant anatomy and embryology because it affects plant reproduction and crop productivity. Pollen sterility can be caused by genetic, environmental, or physiological factors. Genetically, pollen sterility often results from chromosomal abnormalities such as mutations, translocations, or polyploidy, ______ _____ _____ ___ ______.
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