Biology - Mutation

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3.28 Understand that variation within a species can be genetic, environmental, or a combination of both 3.29 Recall that mutation is a rare, random change in genetic material that can be inherited 3.31 Understand that many mutations are harmful but some are neutral and a few are beneficial 3.32 Understand how resistance to antibiotics can increase in bacterial populations

3.33 Understand that the incidence of mutations can be increased by exposure to ionising radiation (for example gamma rays, X-rays and ultraviolet rays) and some chemical mutagens (for example chemicals in tobacco).