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This test consists of 5 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. When Watson constructed models of the bases what was the same about a pair?
(a) Number
(b) Shape
(c) Size
(d) Appearance

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

3. How old was Rosy when she died?
(a) 37
(b) 60
(c) 54
(d) 25

4. What topic was Linus Pauling studying?
(a) How protein helixes created coils within coils
(b) Why bacteria were able to reproduce
(c) How protein coils did not make helixes
(d) How to build a model of DNA

5. What was the fundamental flaw in Linus Pauling's model of DNA?
(a) He relayed that there were four helixes
(b) The phosphate molecules were not ionized
(c) The phosphate molecules were ionized
(d) He could not identify the number of helixes

Short Answer Questions

1. Why was Watson trying to make crystallographic X-rays of TMV?

2. Where was Pauling's lab?

3. The base pairs Watson had developed after lunch were the same as the sets of bases that appeared whose work?

4. Which of the following is the best definition of the term untenable?

5. Which of the following characteristics best describes how Watson viewed the conference in London?

(see the answer keys)

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