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