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Milestones in DNA history

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The scientist who first showed that genetic material is a heat stable chemical is :

  Friedrich Miescher

  Erwin Chargaff

  Oswald Avery

  Franklin Griffith

  Half-n-half Clue


One of the surprises uncovered by the Human Genome project was the surprisingly small number of genes that humans possess. This number is approximately :





  Half-n-half Clue


Proof of the model of DNA replication suggested by Watson and Crick came from the experiments of :

  Sidney Brenner and Francis Crick

  George Beadle and Edward Tatum

  Stanley Cohen and Herbert Boyer

  M. S. Meselson and F. W. Stahl

  Half-n-half Clue


The Double Helix structure of DNA was first described by :

  Oswald Avery

  Peter Mitchell

  Watson and King

  James Watson, Francis Crick and Maurice Wilkins

  Half-n-half Clue


The scientist who identified the transforming agent in Griffith's famous experiment (1928) as DNA was :

  Peter Mitchell

  Oswald Avery

  Friedrich Miescher

  Erwin Chargaff

  Half-n-half Clue


The first organism ever to be cloned from adult cells was :

  Dolly, the sheep

  A cow

  Northern Leopard frogs


  Half-n-half Clue


Robert Holley, Har Gobind Khorana, and Marshall Nirenberg shared the Nobel prize for medicine in 1968 for their contribution to DNA reasearch, which was :

  the discovery of the structure of DNA.

  the elucidation of protein synthesis.

  the discovery of the presence of DNA which could not be expressed.

  the discovery of the lac(tose) operon.

  Half-n-half Clue

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