1. 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.   Hint Half-n-half Clue   2. Proof of the model of DNA replication suggested by Watson and Crick came from the experiments of :   George Beadle and Edward Tatum   Sidney Brenner and Francis Crick   M. S. Meselson and F. W. Stahl   Stanley Cohen and Herbert Boyer   Half-n-half Clue   3. The scientist who identified the transforming agent in Griffith's famous experiment (1928) as DNA was :   Friedrich Miescher   Erwin Chargaff   Oswald Avery   Peter Mitchell   Half-n-half Clue   4. 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   35000   60000   80000   Half-n-half Clue   5. The Double Helix structure of DNA was first described by :   Peter Mitchell   Oswald Avery   Watson and King   James Watson, Francis Crick and Maurice Wilkins   Half-n-half Clue   6. The scientist who reported that DNA composition is species specific was :   Erwin Chargaff   Herbert Boyer   Hamilton Smith   Sidney Brenner   Half-n-half Clue   7. The scientist who created the first recombinant DNA molecules :   James Shapiero   Howard Temin   Ian Wilmut   Paul Berg   Half-n-half Clue