Variation and Mutation - GCSE Biology (9-1)

This video is for Edexcel IGCSE Biology 9-1 but is relevant for many GCSE Biology courses. It covers these specific objectives from the syllabus

3.33 Understand that variation within a species can be genetic, environmental, or a combination of both.
3.34 Understand that mutation is a rare, random change in genetic material that can be inherited.
3.35B Understand how a change in DNA can affect the phenotype by altering the sequence of amino acids in a protein.
3.36B Understand how most genetic mutations have no effect on the phenotype, some have a small effect and rarely do they have a significant effect.
3.37B 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).

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[marinatz]

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[lamp]

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