[sci.bio] Bringing Back Extinct Species

teexmmo@isis.educ.lon.ac.uk (Matthew Moore) (04/06/90)

Wen-King Su writes:
Vincent Catewrites:

>>The idea is to take some DNA from a mammoth cell and use this to clone a
><mammoth.  The nucleus from a mammoth cell would be put into a elephant egg
>
>What about the beta-decay of C-14 isotope.  Anybody knows the approximated
>number of C-14 atoms per mammoth DNA?  C-14 undergoes beta decay into N-14
>with a half life of 5730 years.  If there are many C-14 atoms in each piece
>of DNA, the mammoth DNA could be pretty badly chopped up by the time we dig
>them out of the ice.

An interesting thought! Isnt it likely to be the same as the 'natural'
occurence (ie in the atmosphere etc) and isnt the ratio of
C14  : C14 pretty low?
-- 
			><{ (`>   <') }><