Biology · A-Level · Edexcel · Edexcel A-level Biology A (Salters-Nuffield) — 9BN0 · Specification point · 3.9 · Voice of the Genome
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3.9 Understand the role of meiosis in ensuring genetic variation through the production of non-identical gametes as a consequence of independent assortment of chromosomes and crossing over of alleles between chromatids (details of the stages of meiosis are not required). |