Biology (Mader), 10th Edition

Chapter 12: Molecular Biology of the Gene

DNA Dark Lady

Objective: Recall the influential scientists involved in the discovery of the DNA molecule.

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1.

Approximately how many years ago did the structure of the DNA molecule become determined?
A)20
B)30
C)40
D)50
2.

The shape of the molecule was identified as being:
A)helical
B)pyramidal
C)hexagonal
D)rectangular
3.

How did Rosalind Franklin determine the shape of the DNA molecule?
A)She crystallized DNA and took x-ray pictures of it.
B)She completed mathematical computations that identified it as a spiral molecule.
C)She proposed a hypothesis that remains untested.
D)She broke the DNA into fragments and observed them reassembling.
4.

The scientists who won the Nobel Prize for their work in discovering the structure of the DNA molecule were:
A)Hershey & Chase
B)Watson & Crick
C)Schleiden and Schwann
D)Meselson and Stahl
5.

Which of the following statements would be inaccurate regarding the discovery of the DNA molecule?
A)The Nobel Prize was given to Rosalind Franklin posthumously.
B)Watson and Crick relied on her data on imaging the molecule.
C)In essence, she is thought of today as a co-discoverer of the molecule.
D)She died without knowing her prominent role in the DNA discovery.
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