http://en.wikipedia.org/wiki/Red_blood_cell
Because of the lack of nuclei and organelles, mature red blood cells do not contain DNA and cannot synthesize any RNA, and consequently cannot divide and have limited repair capabilities.This also ensures that no virus can evolve to target mammalian red blood cells.
Because of the lack of nuclei and organelles, mature red blood cells do not contain DNA and cannot synthesize any RNA, and consequently cannot divide and have limited repair capabilities.This also ensures that no virus can evolve to target mammalian red blood cells.
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