linkedin post 2018-04-18 04:38:25

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REGARDLESS OF MOLECULAR TURNOVER. "In its simplest, though still inaccurate form, biological mortality is usually defined as the death of an organism or the termination of its lineage. Immortality would be defined as the indefinite survival of a single organism or of a replicating population regardless of molecular turnover. Imperfect as these definitions are, they do have limited use in understanding some of the fundamental differences between normal and cancer cells." (Leonard Hayflick). https://lnkd.in/esfPTAR View in LinkedIn
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linkedin post 2018-04-20 06:29:34

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A MATTER OF SCALE. "Humans as individuals are mortal but humans as a population are immortal. That concept applies equally well to all animals and most plants. We frequently see it stated that bacteria and protozoa are immortal. That is not so. Like human populations, unicellular populations are immortal and like individual humans unicellular organisms are mortal." http://protein.bio.msu.ru/biokhimiya/contents/v62/full/62111380.html View in LinkedIn
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linkedin post 2018-04-20 06:29:07

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A MATTER OF SCALE. "Humans as individuals are mortal but humans as a population are immortal. That concept applies equally well to all animals and most plants. We frequently see it stated that bacteria and protozoa are immortal. That is not so. Like human populations, unicellular populations are immortal and like individual humans unicellular organisms are mortal." http://protein.bio.msu.ru/biokhimiya/contents/v62/full/62111380.html View in LinkedIn
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linkedin post 2018-04-20 06:27:12

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FREQUENTLY IGNORED. "The immortality of a population depends upon a periodic exchange or rearrangement of genetic information. The immortality of individual organisms or cells, however, depends on demonstrating that exchange of genetic information has not occurred. That seems self evident but it is frequently ignored." https://lnkd.in/dQ_65Wv View in LinkedIn
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linkedin post 2018-04-20 06:20:41

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CELL TRANSFORMATION into a tumor cell. "Our definitions were not universally accepted nor has anyone else been able to bring order out of the current terminological chaos, including heroic efforts by several nomenclature committees established by the Tissue Culture Association. Because of this, today, the scientific literature in this field is virtually unintelligible." http://protein.bio.msu.ru/biokhimiya/contents/v62/full/62111380.html View in LinkedIn
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