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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. How many parts are in the process of transposition?
(a) Two.
(b) One.
(c) Three.
(d) Four.

2. In what year did Lewis Stadler die?
(a) 1951.
(b) 1954.
(c) 1950.
(d) 1955.

3. In what year did Evelyn Witkin come to Cold Spring Harbor?
(a) 1942.
(b) 1951.
(c) 1954.
(d) 1944.

4. In Chapter 7, Esther Parker had bought a farm that was located how many miles north of Ithaca?
(a) Fifty.
(b) Forty-five.
(c) Thirty.
(d) Twenty-five.

5. In Milislav Demerec's first moves in his new position as the Director of the Department of Genetics of the Carnegie Institution of Washington, he gave Barbara a position for what length of time?
(a) Ten years.
(b) Two years.
(c) Five years.
(d) One year.

6. Gerald Holton commented on scientific imagination and it's importance to how many particular scientists?
(a) Two.
(b) One.
(c) Three.
(d) Four.

7. Who presented the first paper in the 1951 symposium?
(a) Richard Goldschmidt.
(b) Milislav Demerec.
(c) Barbara McClintock.
(d) Lewis Stadler.

8. How did Evelyn Witkin say she learned from Barbara and developed her own understanding from her?
(a) By watching Barbara work from across the lab during the late night hours.
(b) By listening to recordings that Barbara taped to teach others.
(c) By reading Barbara's in depth notes.
(d) By looking over Barbara's shoulder.

9. Who was the theoretical physicist who was trained by Niels Bohr?
(a) Max Delbruck.
(b) Barbara McClintock.
(c) Lewis Stadler.
(d) Milislav Demerec.

10. What was Demerec summing up by the words, "Ten years ago they were visualized as fixed units with precise boundaries?"
(a) Chromosomes.
(b) Genes.
(c) Scientists.
(d) Cells.

11. Bacterial chromosomes contain little, if any what?
(a) Protein.
(b) Carbon.
(c) Chromatin.
(d) Plasma membrane.

12. Among plants in the first crop, there were patterns of variegation so unusual they "could not fail to catch the eye". What was so unusual about these kernels?
(a) They should have been colorless, but there were spots of color.
(b) They should have been all uniform shape, but there were some that were much larger than expected.
(c) They should have been yellow, but they were brown.
(d) They should have all been the same color, but there were four different colors present.

13. In the mutant seedlings that Barbara had grown, what could be seen that didn't belong?
(a) Discolored kernals that were green.
(b) No growth of kernals in many spots.
(c) Streaks or spots of color.
(d) Rings around the outside husk of the corn.

14. Who was the French intellectual who was mentioned in Chapter 11 that broke with the Communist Party in 1945?
(a) Jean Picard.
(b) Jacques Monod.
(c) Jacques Alexander César.
(d) Francois Jacob.

15. Which type of RNA contains the information coding for the sequence of amino acids?
(a) Ribosomal RNA.
(b) Transfer RNA.
(c) Messenger RNA.
(d) Coding RNA.

Short Answer Questions

1. In Drosophila a bacterium divide in two every how many minutes?

2. Who presented the second paper in the 1951 symposium?

3. How many winters did Barbara spend in Central and South America?

4. What did Barbara think when she found that Drosophila that were affected by radiation were more vigorous than the standard Drosophila?

5. How long did it take for Barbara to get from her first clues to her final interpretation dealing with transposition?

(see the answer keys)

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