The science of genetics

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  • The science of genetics
    • Early research into genetics
      • By 1900: the fundamental law of inheritance stated that genes came in pairs, and one is inherited from each parent.
        • No scientific proof yet, as microscopes weren't yet powerful enough to identify gene pairs.
      • by 1951: knew that characteristics were passed down from parents to children
        • Theorized that a substance in human cells passed on this information, as well as a variety of hereditary diseases
          • 1953: technology finally made it possible for scientists to find the missing piece of the puzzle: DNA
    • Watson, Crick and the discovery of the human gene
      • 1953: shared an office with each other - neither were investigating DNA, but those shared an interest in human biology.
      • Saw x-rays provided by Franklin and Wilkins
        • built there model of DNA and shared it with Franklin, who made corrections
          • Wilkins also shared clearer photographs
            • this made it possible for Watson and Crick to solve the structure of DNA
              • built there model of DNA and shared it with Franklin, who made corrections
                • Wilkins also shared clearer photographs
                  • this made it possible for Watson and Crick to solve the structure of DNA
        • published in APR 1953 - this discovery means that they could now begin to look at its structure and identify the parts that caused hereditary diseases
      • Mapping of the human genome
        • teams of scientists began to break it apart to understand how it worked
          • 1990: The human genome project
            • 18 teams of scientists al over the world worked together to decode and map the genome
            • The first draft was only finished in 2000
            • Used their template to look for mistakes in the DNA of people suffering from hereditary diseses
      • Factors helping the development of genetics
        • Technology
        • Science
          • a lot of collaboration from the scientific community: all data produced were made public so that it could benefit as many people as possible
        • The impact of the science of genetics
          • helped scientists recognise genetic disorders that could theoretically be treated

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