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How do multinucleated cells arise?

Multinucleated cells may arise through cell fusion (forming a syncytium) or through repeated nuclear division in the absence of cytokinesis (coenocytic cells). These processes reflect alterations in the normal cell cycle, in which mitosis proceeds without the completion of cytokinesis, allowing multiple nuclei to coexist within a shared cytoplasm and coordinate gene expression to support high metabolic or structural demands.