A multicelular organism is a mortal. As such, a two-year-old mouse is a very old mouse indeed, Even with the best medical care, no would expect a mouse to live 5 years. In the case of man, gradual deterioration which accompanies aging appears to begm at about 30; a 100-year-old man is as rare as a 2-year-old mouse. Yet, in a strict sense, only the somatic cells of the body are mortals.


Germ Cell Somatic Cell Germ Line Slave System Gradual Deterioration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1970

Authors and Affiliations

  • Susumu Ohno
    • 1
  1. 1.Department of BiologyCity of Hope Medical CenterDuarteUSA

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