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DNA wraps around histones in eukaryotes to help maintain the compact structure of chromosomes
- the repeating set of events in the life of a cell
- consists of a cell division and interphase
- cell division includes mitosis and cytokenisis
- in animal cells, a cleavage furrow pinches in and eventually separates the dividing cell into two cells
- in plant cells, a cell plate separates the dividing cells into two cells
when control of cell division is lost
cancer may result if the cells aren't able to respond to the control mechanisms
- chromosomes are copied # doubles
- chromosomes appear as threadlike coils (chromatin)
- chromosomes change to sister chromatids at the end of the phase
- centrioles appear and begin to move to opposit ends of cell
- spindle fibers form between the poles
-0 cell membrane moves inward to creat two daughter cells - each with its own nucleus with identical chromosomes
- process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell
- leads to four haploid cells (gametes) rather than two diploid cells as in mitosis
when portions of homologous chromosomes exchange genetics material, occurs during prophase 1 and results in genetic recombination
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