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Milestones in DNA history


Given the DESCRIPTION, identify the ANSWER

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1.

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

  M. S. Meselson and F. W. Stahl

  Stanley Cohen and Herbert Boyer

  Half-n-half Clue
 

2.

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

  Peter Mitchell

  Friedrich Miescher

  Erwin Chargaff

  Oswald Avery

  Half-n-half Clue
 

3.

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

  10000

  60000

  80000

  35000

  Half-n-half Clue
 

4.

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 lac(tose) operon.

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

  the discovery of the structure of DNA.

  the elucidation of protein synthesis.

  Half-n-half Clue
 

5.

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

  Walter Gilbert and Frederick Sanger

  Arnold Levine and Gerald Edelman

  Harold Varmus and Rodney Porter

  Clara Bloomfield

  Half-n-half Clue
 

6.

The scientist who created the first recombinant DNA molecules :

  Ian Wilmut

  Howard Temin

  Paul Berg

  James Shapiero

  Half-n-half Clue
 

7.

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

  Erwin Chargaff

  Herbert Boyer

  Hamilton Smith

  Sidney Brenner

  Half-n-half Clue
 


 
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