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Author Topic:   Mutation
Denesha
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Message 37 of 171 (98358)
04-07-2004 5:30 AM 		Reply to: Message 34 by SweeneyTodd
04-07-2004 4:47 AM

Re: What!?!
Dear Sweeneytodd,
​
This seems true for a given environment. If changes occurs, the helpful/harmful ratio will have an other signification.
​
What was helpful to Early Cretaceous dinosaurs was harmful for uppermost Cretaceous dinosaurs. Their is a nice dictum: "Extinctions: bad genes or bad luck" (David Raup)
​
I think that the beneficial of mutations is allways positive, even if it is very small. Overwise, our days biodiversity should be very low.
​
Denesha
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