In article <JITpwAfNBh107h at chambers.ak.planet.co.nz>, steve at chambers.ak.planet.co.nz (Steve Chambers) says:
>
>>Besides which, an immortalised cell line quickly loses it's resemblance
>to the cell type from which it arose - in other words it's damaged, or
>"aged" might be a better word ;-)
>Immortalised cell line are often in a less differenciated state than parental.
So "younger"...
If they become immortal, they stop to age ! (it's a damage too -) )
Then it raises the idea that cells are able to "decide" to not age and to respond to time assaults.
So why aging ? for evolution ? ( are bacteria able to age ?)
Johann
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Johann JOETS
Institut de Biologie Moleculaire et d'Ingenierie Genetique
Laboratoire de Genetique Physiologique et Moleculaire
Universite de Poitiers
40, Av du Recteur Pineau, 86 022 Poitiers
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