Edexcel OLevel Biology revision notes

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Lesson

Lesson-3.2.8- understand that most phenotypic features are the result of polygenic inheritance rather than single genes.

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Lesson-3.2.7- understand the meaning of the terms: dominant, recessive, homozygous, heterozygous, phenotype, and genotype.Previous Lesson-3.2.9- describe patterns of monohybrid inheritance using a genetic diagram.Next