The only difference between one species and another is genetics. If mutation can change genetics, as we know it can, what prevents enough changes from giving rise to new species?

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	Message 168 by bran_sept88, posted 01-25-2004 9:26 PM		bran_sept88 has replied

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	Message 176 by bran_sept88, posted 01-26-2004 11:22 AM		crashfrog has replied

crashfrog

Member (Idle past 1497 days)

Posts: 19762

From: Silver Spring, MD

Joined: 03-20-2003

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Message 187 of 208 (80916)
01-26-2004 7:23 PM

Reply to: Message 176 by bran_sept88
01-26-2004 11:22 AM

Not Exactly, chromosome count is the major factor

That's a factor in reproductive isolation, but nobody uses it for species classification.

You may be interested to know that humans have a chromosome which is obviously a fusion of two chromosomes possessed by apes. How would you explain this if not by common descent? Apparently there are natural processes that can change chromosome count in animals. (It's certainly well-established in plants, as you may know.)

You can read about it at:

Human / Ape chromosome differences

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	Message 176 by bran_sept88, posted 01-26-2004 11:22 AM		bran_sept88 has not replied

crashfrog

Member (Idle past 1497 days)

Posts: 19762

From: Silver Spring, MD

Joined: 03-20-2003

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Message 191 of 208 (80963)
01-26-2004 11:35 PM

Reply to: Message 190 by johnfolton
01-26-2004 11:15 PM

I believe all sediments layers are primarily the fossil sediment of the biblical flood

But they can't be if some of the layers pre-date the flood, as you've argued in other threads. So which is it? You can't have it both ways.

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	Message 190 by johnfolton, posted 01-26-2004 11:15 PM		johnfolton has not replied

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