Genetic Diversity Variation of genes within and between individual organisms within and between populations within and between species So where does variation come from? Sources of Variation Mutation Random changes in the DNA Sequence (changes the gene into something totally new) Mutation Causes Environmental damage (UV, Radiation, Chemicals) Sexual Reproduction - including recombination (during meiosis) & fertilization (Creates new combinations of genes) - meiosis Crossing over and Recombination - creates a different combination of genes in every gamete - every gamete produced is uniqu...

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