B1 Part 1 - Genes

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  • B1 Part 1 - Genes
    • Proteins - made up long chains of amino acids
    • Nucleus - the part of the cell which contains genetic information
    • Chromosone - long thin thread like structures made from a molecule of DNA
    • DNA - Deoxyribonu-cleic acid
    • Lipase - functional, digests fat
    • Collagen - structural, found in skin
    • Egg cell - 23 chromosones
    • Sperm cell - 23 chromosones
    • Fertilised egg - 46 chromosones
    • Skin cell - 46 chromosones
    • Alleles - different versions of the same gene
    • Homozygous - the same alleles
    • Heterozygous - different alleles
    • XY - Man
    • XX - Woman
    • Phenotype - describes the characteristics an organism has

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