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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 29.

Multiple Choice Questions

1. Why did Watson believe that DNA would be a two-chain?
(a) Picture showed 2 chains
(b) Pauling's model was wrong
(c) Crick had found 2 chains in previous research
(d) Things in biology come in pairs

2. What happened when King's lab began comparing their experimental results to the double helix structure?
(a) They debated it's accuracy
(b) They found a major flaw
(c) They supported the model
(d) They refuted the model

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

4. Who checked Watson and Crick's chemistry on the model?
(a) Todd
(b) Bragg
(c) Maurice
(d) Pauling

5. Which of the following did Crick lack when it came to the type of research needed for a PhD thesis?
(a) Patience
(b) Perseverance
(c) Knowledge
(d) Drive

Short Answer Questions

1. Which of the following words best describes how the authors of the chemistry book had chosen the structures of the bases?

2. Which of the following characters was on the edge of being fired?

3. Where did Watson see Chargaff for the second time but they did not speak?

4. Which of the following subjects did Watson avoid during his graduate work?

5. How did Cochran and Crick explain X-ray diffraction by helical molecules?

(see the answer key)

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