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Milestones in DNA history

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

  Dolly, the sheep

  Northern Leopard frogs

  A cow


  Half-n-half Clue


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

  Erwin Chargaff

  Friedrich Miescher

  Peter Mitchell

  Oswald Avery

  Half-n-half Clue


The scientist who created the first recombinant DNA molecules :

  Howard Temin

  James Shapiero

  Ian Wilmut

  Paul Berg

  Half-n-half Clue


The scientist(s) who developed a technique to sequence DNA and later won a Nobel prize for their achievement in 1980 is(are) :

  Harold Varmus and Rodney Porter

  Arnold Levine and Gerald Edelman

  Clara Bloomfield

  Walter Gilbert and Frederick Sanger

  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 discovery of the lac(tose) operon.

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

  the elucidation of protein synthesis.

  Half-n-half Clue


The scientist who reported that DNA composition is species specific was :

  Herbert Boyer

  Hamilton Smith

  Erwin Chargaff

  Sidney Brenner

  Half-n-half Clue


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

  Erwin Chargaff

  Franklin Griffith

  Oswald Avery

  Friedrich Miescher

  Half-n-half Clue

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