Wednesday, August 12, 2009

The Cell Cycle


The cell grows and duplicates its DNA and centrioles,then the chromain condenses into chromosomes. The chromosomes line up across the middle of the cell , the sister chromatids separate into individual chromosomes and move apart. Chromosomes gather at opposite ends of the cell, the cell membrane pinches the cytoplasm in half.

Interphase lasts at least 12 to 24 hr in mammalian tissue during this period the cell synthesize RNA producing protein and getting big.

Mitosis is shorter than interphase, the cell growths and protein production stops. The cell's energy is focused on the complex and orderly division into two similar daughter cells.

*two main events of the cellular reproduction are the copying of cellular components and the cleavage of the cell*

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