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Re: Dino-fuzz found in amber?

Well, in genetic genealogy, I see it all of the time. I have two personal coding region mitochondrial mutations that don't appear to change the structure of the resulting protein. That is actually the most common kind of genetic mutation. ;)

Dora Smith

----- Original Message ----- From: "Mike Keesey" <keesey@gmail.com>
To: <dinosaur@usc.edu>
Sent: Thursday, September 15, 2011 2:36 PM
Subject: Re: Dino-fuzz found in amber?

On Thu, Sep 15, 2011 at 12:33 PM, Erik Boehm <erikboehm07@yahoo.com> wrote

You cannot get the DNA sequence from the protein sequence.
There are 64 possible codons for 20 amino acids.
You can generate *a* DNA sequence that would produce that amino acid sequence, but you cannot generate *the* DNA sequence that produced those proteins (at least not with any certainty)

Knew that, but...

Additionally, the "genetic code" mapping 64 codons to 20 amino acids is not uniform in life - there are variations of it

Didn't know that! Where can we read more about that?
T. Michael Keesey