Question

Fluorescent microscopy can be used to visualize cellular structures in very high contrast.
What do the fluorescent dyes stain to make this possible?
a) All cells in G1
b) Replicating DNA
c) Specific molecules
d) Mitotic structures

Answer 1

Answer: it is C

Explanation:

Specific molecules

Answer 2

Fluorescent microscopy can be used to visualize cellular structures in very high contrast because fluorescent dyes STAIN specific molecules (Option C).

• A fluorescence microscope is a microscope that uses fluorescent dyes to stain a particular specimen.

• Some examples of fluorescent dyes include, among others, Rhodamine, Acridine Orange and DAPI.

• For example, 4′,6-diamidino-2-phenylindole (DAPI) is a fluorescent dye that stains Adenine–Thymine (AT) rich regions in the DNA molecule.

In conclusion, fluorescent dyes STAIN specific molecules (Option C is correct).

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