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Parameter Tree:
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > MUTATION RATES
Definition:
Mutation is a spontaneous change in the genotype of an organism at the
genetic, chromosomal, or genomic level. The term mutation often refers to
alterations to new allelic forms, and represents new material for
evolutionary change. 
Reference:
Meffe, Gary K. and C. Ronald Carroll. Principles of Conservation Biology.-2nd
ed. 1997. Sinauer Associates, Inc. Sunderland, Massachusetts.
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