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Genetics Timeline

By stadlerg
  • Mendel’s Papers were published

    Mendel’s Papers were published

    In these papers he gave his conclusions about units of inheritance in pairs, dominant and recessive traits, equal segregation, and independent assortment.
  • DNA is discovered by Friedrich Miescher

    DNA is discovered by Friedrich Miescher

    He described it as an acidic substance found in cell nuclei. At the time he discovered it; the significance of DNA wasn’t appreciated and wouldn’t be for 70 years. This was an important discovery because DNA is the blueprint of living things and determines all of the traits that an organism may have.
  • Sir Archibald Garrod discovers the first human disease that is linked to genetics

    Sir Archibald Garrod discovers the first human disease that is linked to genetics

  • The chromosome theory of heredity is proposed by Sutton

    The chromosome theory of heredity is proposed by Sutton

    This recognizes that individual chromosomes are different from one another, but Sutton doesn't make a connection to Mendelian principles.
  • The first experiments on quantitative traits in common beans are conducted by Wilhelm Johanssen

    The first experiments on quantitative traits in common beans are conducted by Wilhelm Johanssen

    He then concluded that all traits followed a normal distribution leading him to discover genotypes and phenotypes.
  • Some genes are discovered to be linked and do not show independent assortment by Bateson and Punnett.

    Some genes are discovered to be linked and do not show independent assortment by Bateson and Punnett.

  • The chromosomes theory of heredity is proven true by T.H Morgan

    The chromosomes theory of heredity is proven true by T.H Morgan

    This was found true by studying the inheritance of eye color in a fly.
  • Hamilton Smith purifies the first restriction enzyme

    Hamilton Smith purifies the first restriction enzyme

    This made genetic engineering possible.
  • DNA sequencing technology was developed by Fred Sanger

    DNA sequencing technology was developed by Fred Sanger

  • PCR is developed by Kary Mullis

    PCR is developed by Kary Mullis

  • fingerprinting, gene therapy, and genetically modified foods become more common

    fingerprinting, gene therapy, and genetically modified foods become more common

  • Genome projects begin

  • DNA microarrays are invented by Pat Brown

    DNA microarrays are invented by Pat Brown

  • cloning of a mammal (a sheep named Dolly)is performed by Ian Wilmut

    cloning of a mammal (a sheep named Dolly)is performed by Ian Wilmut

  • First draft of Human Genome is completed

    First draft of Human Genome is completed

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