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Author Topic: Can you carbon date your grandmother to find out how old she is?  (Read 3820 times)

Offline chris

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I was asked by someone on the radio today how he might obtain an accurate age for his grandmother? The family are not sure when her exact birthday is, but they think she's nearly 100.

Could they carbon date her, or similar, to find out?!

Chris
« Last Edit: 26/02/2010 08:14:57 by chris »


 

Offline omid

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omid guess this happened exactly to omid's friend's father
and omid guess that they had some x-ray of his right or left (not sure :-\) to find his real age.
 

Offline RD

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Measure the length of her telomeres ... http://en.wikipedia.org/wiki/Telomeres#Systemic_telomere_length_and_aging

Or measure the amount of mutation in her DNA (and that of her mitochondria) ... http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2816353/ 
« Last Edit: 26/02/2010 16:52:09 by RD »
 

Offline Bored chemist

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The best radiocarbon dating can do is tell you when something died and that's clearly not helpful here.
You could ask her what the earliest thing she remembers is and how old she was at the time.
If, for example, she remembers talking to her friends at work about the Titanic's sinking then she is over 100.
 

Offline chris

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Actually, Bruce Buchholz and his colleagues used 14C integration into adipose DNA to age fat cells to work out the lifespan of the average adipocyte (12 years).

http://www.nature.com/nature/journal/v453/n7196/full/nature06902.html

Perhaps the same approach could be used with a life-long post-mitotic (non-dividing) cell, like a neurone, to age an individual?

Chris
 

Offline RD

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