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10. Variations Causing Harmless Changes

Variations Causing Harmless Changes


Some of the variations that occur in the coding and regulatory regions of genes have "harmless" effects. They can, for example, change the way a person "looks." Some people have blue eyes, others brown; some are tall, others short; and some faces are oval, others round.

Other variations in coding regions are harmless because they occur in regions of a gene that do not affect the function of the protein made.