Question

question 10 of 10
a scientist separates a specific protein from all other components of a yeast
cell. next, she searches for a small molecule that binds to the isolated
protein. what type of experimental design is being used?
a. an age cohort study
b. an occupational cohort study
c. in vitro observation
d. a clinical trial

Explanation:

In vitro observation involves studying biological components (like the protein here) outside of a living organism (in a controlled environment, not in a whole - organism context). Age cohort and occupational cohort studies are types of epidemiological studies involving groups of people. A clinical trial is a research study involving human subjects to test medical interventions. Since the scientist is studying a protein in isolation (not in a living organism context like in a whole yeast cell in a complex organism - level study), in vitro observation is the correct experimental design.

Answer:

C. In vitro observation