How Might a Researcher Study the Presence of a Specific

Multiple Choice

How might a researcher study the presence of a specific protein in cells from different tissues of the body?

A) Slice cells into thin sections, use electron microscopy to take many images of structures inside the cells, and search for the protein in the images.
B) Observe the protein in living cells, using light microscopy techniques that preserve cells in the living state.
C) Treat cells with a dye that selectively binds to the protein of interest, and look for evidence of this dye in cells, using light microscopy.
D) Use scanning electron microscopy to search for the protein in the three-dimensional surfaces of whole cells.
E) Use a general protein stain to treat cells before preparing them for bright-field microscopy, and then search for evidence of this dye in the samples.