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Prokaryotic Cell Cycle
Most of these cells begin to replicate chromosomes once they have grown to size; when replication is complete, division begins through binary fission
Asexual reproduction; once chromosome has been replicated, two DNA molecules attach to diffferent regions of cell membrane; network of fibers form between them, pinch cell inward, dividing cytoplasm and chromosomes into to new cells
DNA replication; new copy of DNA is synthesized, so cell contains twice as much DNA at end of S phase
Organelles and molecules required for cell division are produced; when completed, cell is ready for M Phase
Genetic material inside nucleus condenses and duplicated chromosomes become visible; outside nucleus, spindle begins to form; nucleolus disappears, nuclear envelope breaks down
Each DNA strand in duplicated chromosomes is referred to as chromatid; chromatids separate during mitosis
Fibers that extend from centrosome (of two centrioles); centrioles start to move towards poles of cell
Centromeres of duplicated chromosomes line up across center of cell; spindle fibers connect centromere of each chromosome to two poles of spindle
Begins when sister chromatids split up and move apart; continues as they move along spindle fibers to opposite ends of cell
Chromosomes, before distinct and condense, begin to spread out into tangle of chromatin; nuclear envelope reforms against cluster of chromosomes; spindle breaks apart, nucleolus form; mitosis is complete
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