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Old 04-05-2004, 10:07 PM
P van Rijckevorsel
 
Posts: n/a
Default telling apart green ash from white ash

Archimedes Plutonium schreef
I wonder if the difference of a species of trees can come so close as

to be a small visual difference of between whether a leaf has convex shape
or concave shape.

Tue, 4 May 2004 09:56:13 +0200 P van Rijckevorsel wrote:
You are confusing identification with species delimitation.
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Archimedes Plutonium schreef
Not really. I was leading into the concept of linking A,C,T,G with form

and function and body morphology.

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In that case you were confusing a genuine question with a retorical device.
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What I am getting at is whether scientists have yet quantified as to

how much at minimum must the A,C,T,G vary in order for there to be 2
different species.

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Easy: 1. Theoretically a single base pair should do it.
On the other hand hundreds of base pairs could vary without any effect
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That is false. False as per the recent Neanderthal DNA comparison to

humans. Under that rigor it took at least 3 base pair differences to
demarkate species.

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Probably a few hundred more?
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This ties in nicely with my theory that Stonethrowing created humans out

of apelike creatures. The first apes to throw rocks and stones some 10
million years ago would have been able to breed with non-stonethrowers. But
as selection for stonethrowers increase to the point where the DNA of
A,C,T,G changed in at least 3 base pairs (Neanderthal example) that would
create a better Rotator Cuff so that the individual could throw better. That
this morphology change would eventually lead to a different species.

I have another theory about the Quantum Duality of the plant kingdom to

the animal kingdom. If that theory has a band of truth to it, then the
species separation for plants should be different than for animals. In other
words, like the Neanderthal case where it takes at least 3 base pair
differences for animals. Then perhaps for plants it may take only 1 base
pair difference.

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So now it is no longer false?
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And perhaps a hidden surprize in that no animal species exists that can

have less than 3 base pair differences but that plants can have 1 or 2 or 3
or more base pair differences and be different species.

So the whole question of Speciation is a quantum question. And that Plants

can be quantified at 1 base pair difference but that animals require at
least 3 base pair differences.

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Actually you have not quantified anything, you just speculated about
theoretical minima.
PvR