Unit Test — Unit test

Question 19 • FL-2000310-Biology 1 A

Which is the best example of a scientific discovery resulting from new technology?

Answer

the discovery that elements can be grouped in a table on the basis of their properties

the discovery of atomic structure which led to the development of an electron microscope

the discovery of the structure of DNA, which occurred as the result of an X-ray image of a DNA molecule

the discovery that plant pigments can be separated and identified by using paper and a solvent

Explanation

The structure of DNA was determined using X-ray diffraction, a technology that produced images revealing how DNA is arranged. This makes choice C, the discovery of DNA’s structure from an X-ray image, the best example of a scientific discovery resulting from new technology. The electron microscope in choice B was developed after the discovery of atomic structure, so the technology followed that discovery rather than causing it.

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