Cellular Differences

Catherine Kunz ckunz at delphi.com
Sun Jun 26 17:03:03 EST 1994

     I would like to know what differences might exist between the somatic
cells in a human aged 20-30 years versus a person aged 50-60 years.
     I understand that cells become non-functioning at some point, but do they
do so all at once or in staggered  waves or groups.
     Also, prior to becoming non-functioning do cells differ substantially in
an older person from a young person, prior to senescing?
			Thanks for the help!

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