3. Which of the following did Watson and Crick add to the models which already existed within the Cambridge lab?
(a) Copper wire
(b) Tin wire
(c) Steel wire
(d) Aluminum wire

4. By the end of chapter twelve, how many chains had Watson and Crick determined would fit with the X-ray images?
(a) 3
(b) 2
(c) 4
(d) 5

5. With whom did Watson want to work in Cambridge?
(a) Linus Pauling
(b) Maurice Wilkins
(c) Sir Lawrence Bragg
(d) Roy Markahm

6. Which of the following is the best term for chains of nucleotides?
(a) Seminucleotide chains
(b) Polynucleotide chains
(c) Patterned nucleotide chains
(d) Multinucleotide chains

7. On what topic had Bragg, Kendrew and Perutz published a paper?
(a) Polypeptide chains
(b) Helical molecules
(c) Crystallographic chains
(d) Insulin dependent molecules

8. What arrangement was did Watson work out with Markham?
(a) To help him convince his Fellowship committee to allow him to relocate to Cambridge
(b) To pretend to work with him
(c) To move to Cambridge
(d) To address his need to study crystallography

9. Which of the following characters wrote a paper describing his idea for the helix theory?
(a) Sir Lawrence
(b) Vand
(c) Crick
(d) Watson

10. Which of the following was a new idea about the life of a scientist to Watson at the end of chapter five?
(a) Intellectual life
(b) Personality conflicts
(c) Structure of DNA
(d) Social life

11. Who convinced Bragg that Watson and Crick should not be working on the problem of the structure of DNA?
(a) Bragg's boss
(b) Maurice's boss
(c) Rosy's boss
(d) Crick's boss

12. How did Pauling discover his ?-helix structure?
(a) By fitting together models of groups of atoms that liked to link together
(b) By fitting X-rays together into specific groups
(c) By taking atoms and gluing them together with photons
(d) By taking X-rays and placing them on top of each other

13. Which of the following is the best synonym for pall as used in the following sentence: Rosy's attitude left a pall on the evening.
(a) Fade
(b) Dark cloud
(c) Go sour
(d) Diminish

14. How many types of nucleotides are in DNA?
(a) 5
(b) 6
(c) 3
(d) 4

15. Which of the following was NOT a reason that Watson was disheartened with Naples?
(a) Biochemistry was still uninteresting
(b) Weather was cold
(c) He knew no one there
(d) There was no heating