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Author Topic:   Can Chromosome Counts Change?
DNAunion
Inactive Member


Message 29 of 70 (75316)
12-27-2003 12:21 PM
Reply to: Message 15 by crashfrog
12-20-2003 2:05 AM


quote:
We observe populations that once could interbreed - were once even the same population - stop being able to interbreed as a result of accumulating change through mutation. It's called "speciation". How can you talk about "created kinds" if new "kinds" - under your proposed definition - arise all the time through observed processes?
Crashfrog, you yourself have actually observed all of this speciation occuring? Gee, are you sure you aren't relying upon authority at all for that claim? In fact, you even say "we"...who is this "we" you are referring to???? Surely not any competent authorities in the field.
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PS: To try to head off at least one of Crashfrog's predictable childish counters, I am absolutely not claiming that species don't arise in nature frequently by reproductive isolation; just that Crashfrog is relying upon authority when making that statement, despite his/her arguments against doing such in a another thread.
[This message has been edited by DNAunion, 12-27-2003]

This message is a reply to:
 Message 15 by crashfrog, posted 12-20-2003 2:05 AM crashfrog has not replied

Replies to this message:
 Message 35 by Peter, posted 01-08-2004 3:06 AM DNAunion has not replied

  
DNAunion
Inactive Member


Message 30 of 70 (75317)
12-27-2003 12:29 PM
Reply to: Message 17 by crashfrog
12-20-2003 7:50 PM


quote:
What about processes that add totally new base sequences? Do those add new "information" (whatever that is)?
Crashfrog, have you yourself observed the actual before and after nitrogenous base sequences of DNA, witnessing first hand the addition of new "information"? Gee, are you sure you're not relying upon authority at all in your claim?
***********************************
PS: To try to head off at least one of Crashfrog's predictable "counters", I am not claiming that information is not added to genomes by changes in base sequences, just that Crashfrog is relying upon authority in her argument, despite his/her arguments against doing such in another thread.

This message is a reply to:
 Message 17 by crashfrog, posted 12-20-2003 7:50 PM crashfrog has not replied

  
DNAunion
Inactive Member


Message 31 of 70 (75320)
12-27-2003 12:35 PM
Reply to: Message 17 by crashfrog
12-20-2003 7:50 PM


quote:
So, if I have two species which historically had the ability to interbreed, but through mutation they totally lose that ability, can I assume that a new kind has been created? That happens, you know.
Sure we know that, because competent authorities in the field have told us that: that's how we know.

This message is a reply to:
 Message 17 by crashfrog, posted 12-20-2003 7:50 PM crashfrog has not replied

  
DNAunion
Inactive Member


Message 32 of 70 (75321)
12-27-2003 12:38 PM
Reply to: Message 17 by crashfrog
12-20-2003 7:50 PM


quote:
What about ring species? That's where you have a linear series of species where each species can interbreed with its neighboors but the first species in the series can't interbreed with the last.
Yes, we know that...because many competent authorities in the field have told us.
Or are you claiming that you yourself Crashfrog have done the experiments that actually demonstrate such?
[This message has been edited by DNAunion, 12-27-2003]

This message is a reply to:
 Message 17 by crashfrog, posted 12-20-2003 7:50 PM crashfrog has not replied

  
DNAunion
Inactive Member


Message 33 of 70 (75323)
12-27-2003 12:43 PM
Reply to: Message 21 by crashfrog
12-21-2003 11:20 PM


quote:
As far as I'm concerned, DNA doesn't code for information - it codes for protiens...
Really? On what grounds do you make such a claim? What experiments have you yourself performed that showed that DNA codes for proteins? Gee, could you be relying upon competent authorities in the field for that fact?

This message is a reply to:
 Message 21 by crashfrog, posted 12-21-2003 11:20 PM crashfrog has not replied

  
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