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Inbreeding and accelarated evolution?

As you might have guessed from the subject, I've been wondering about how inbreeding might influence the evolution of organisms.

On one hand I think inbreeding might accelarate the evolution of new characters, as a mutated gene influencing,say, the occurence of paedomorphosis, becomes more and more dominant in every generation ( I guess).

On the other hand, I argumented against this very idea that inbreeding makes organisms more and more alike due to the small gene-pool,wich thus means that characters are less likely to change.

Could someone say more about this?


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