B1

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  • Created by: lisa
  • Created on: 18-12-12 16:16
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  • B1 You and your Genes
    • You have 23 pairs of Chromosomes
    • Chromosomes are made from DNA
    • Male have X&Y Chromosomes
    • Female have two X Chromosomes
    • parents pass on Genes in their sex cells
    • Alleles:Different versions of Genes in a pair
    • Dominant: You only need 1 copy to have its features
    • Recessive: Must have 2 copies to have its features
    • Dominant: Represented by CAPITALS
    • Resessive: Represented by a lower case
    • Genetic features:eyes gender,Genetic diseases
    • Enviromental features:scares strenght personality

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