Durante la interfase, la célula se prepara para la división celular.El ADN dentro del núcleo comienza a replicarse, formando copias idénticas.El ADN replicado se condensa gradualmente formando cromosomas, cada uno compuesto por dos cromátidas hermanas unidas por un centrómero.Los centriolos también se duplican durante esta fase.Los centriolos duplicados comienzan a migrar hacia polos opuestos de la célula.Durante esta fase preparatoria, varios procesos cruciales ocurren simultáneamente para asegurar una división celular exitosa.Con estos preparativos completados, la célula está lista para comenzar las fases más dinámicas de la mitosis.Durante la metafase, los cromosomas se alinean en el ecuador de la célula.Los cromosomas se conectan a las fibras del huso mitótico a través de sus cinetocoros.En la anafase, las cromátidas hermanas se separan y son arrastradas hacia los polos opuestos de la célula.Este movimiento está impulsado por proteínas motoras que se desplazan a lo largo de los microtúbulos.La distribución equitativa del material genético asegura que cada célula hija recibirá un conjunto completo de cromosomas.As we enter telophase, the chromosomes have reached opposite poles of the cell.New nuclear envelopes begin to form around each set of chromosomes.The chromosomes begin to decondense, returning to their relaxed state as chromatin.Cytokinesis begins with the formation of a contractile ring made of actin and myosin filaments.The contractile ring begins to constrict, pinching the cell in the middle.As the division continues, organelles are distributed between the forming daughter cells.Finally, the cells complete their separation, forming two identical daughter cells.Each daughter cell is now complete with its own set of chromosomes, nuclear envelope, and organelles, ready to begin its own cell cycle.This completes our exploration of cell division.
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