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Date: | Fri, 16 Nov 2007 17:59:53 +1300 |
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>We talk about DNA on Seashells. Somebody tell me about DNA working with
>seashells. I haven't heard of any good results. Maybe I missed
>something on this.
DNA from the animals... the shell is essentially inorganic. The
conchiolin of the shell's matrix and periostracum or the operculum...
not sure if there is any DNA in these, as they are secretions, not
cellular structures.
If the right part of the DNA is chosen, this can yield good
information on relatiionships. If the right part is NOT chosen the
results can be spectacularly wrong. Remember, though, that just like
cladistics, experience and hunches, molecular work is merely a
method, not the absolute.
--
Andrew Grebneff
Dunedin
New Zealand
Fossil preparator
Seashell, Macintosh, VW/Toyota van nut
‚ Opinions stated are mine, not of the University of Otago
"There is water at the bottom of the ocean" - Talking Heads
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