Lesson
Lesson-3.2.22- understand how most genetic mutations have no effect on the phenotype, some have a small effect and rarely do they have a significant effect.
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Lesson-3.2.21- understand how a change in DNA can affect the phenotype by altering the sequence of amino acids in a protein.PreviousLesson-3.2.23- 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).Next