1. On what topic was Rosy's talk?
(a) Crystallographic research into DNA
(b) X-ray diffraction of crystallographic molecules
(c) X-ray crystallographic research into helical molecules
(d) X-ray diffraction by helical molecules

2. In what language were many of the lectures given that Watson attended?
(a) Latin
(b) English
(c) Italian
(d) French

3. Where was Pauling held up when he was on his way to speak at the conference?
(a) Airport
(b) London
(c) Stockholm
(d) Washington, DC

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

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

Short Answer Questions

1. Which of the following terms best describes how the English scientists felt about the United States refusing to allow Pauling to travel to London to speak at the conference?

2. Which of the following is Watson's interest?

3. How did Watson and Crick respond to Bragg when he told them to stop working on the structure of DNA?

4. What did Crick and Watson have in common?

5. How did Watson think that most of the scientific community felt about DNA?

(see the answer key)

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