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| Description: Mutations = accidental changes in DNA that may be passed on to the next generation Non-lethal mutations provide the genetic variation on which natural selection acts Sexual reproduction also leads to variation Genetic material from two individuals is mixed Directional selection = drives a feature in one direction Stabilizing selection = produces intermediate traits, preserving the status quo Disruptive selection = traits diverge in two or more directions Picture Stats: Views: 321 Filesize: 167.8kB Height: 514 Width: 687 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=35643 |