I see where they are coming from, but wouldn't you have to test each family line to establish that they follow the same route to blue eyes and that no one in their own family tree just had that same (yet unique) blue eye mutation?
And wouldn't it take a bunch of people having a 'half mutation' that eventually manifested itself in a single person when two half mutation joined to make a whole mutation?
That could mean that over future generations, each person would trace half of their mutation to one person, but that the other half could come from another genetic line that had their own half-mutation?
Claeren.
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