Meiosis, gametes and fertilisation in life cycles

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describe meiosis as a reduction division that produces haploid nuclei or cells from a diploid cell and results in genetic variation
state that gametes are sex cells produced by meiosis in animals and plants and recognise sperm, egg cells and pollen as gametes
explain that fertilisation is the fusion of haploid gamete nuclei to restore the diploid chromosome number and form a zygote

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sequence the stages from meiosis to gamete formation, fertilisation, zygote formation, mitosis and growth in animals and flowering plants

explain how independent assortment and mixing of genetic material in sexual reproduction contribute to variation, at the level expected for GCSE

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