Genomes and Characteristics

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  • Genome and Chromosome
    • Chromo-somes are long molecules of DNA
      • Genome is stored in chromosomes
      • 23 pairs of chromosomes
      • DNA is a polymer made up of monomers made up of nucleotides
        • Nucleotides include:
          • Sugar - Pentagonal
          • Phosphate - Circular
          • Base - Square
    • Genome is the entire genetic material of an organism
      • Genome is stored in chromosomes
    • Genes are instructions in the genome
      • Small section of DNA
      • Codes for a particular sequence of amino acid
        • The amino acids join to make a protein
          • Polymeri-sation
          • Proteins control different characteristics
      • Different versions are called alleles
        • Blue eyes, Brown eyes, Green eyes are alleles
    • Genes and the envirionment can influence characteri-stics
      • Combination of alleles is called the genotype
      • What is displayed is the phenotype
      • Interaction with the environment can modify the phenotype

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