What type of microscopy is used in the image?

• A. Fluorescence
• B. Light
• C. Electron
• D. Phase Contrast

Answer: (A)

Fluorescence microscopy is being used. This method labels specific molecules or structures with fluorophores that emit light when excited by a particular wavelength, producing bright, colored signals against a dark background. The distinct, localized colors seen in the image indicate targeted labeling (often with different fluorophores for multiple components), which is a hallmark of fluorescence imaging.

By comparison, brightfield (light) microscopy would show a more uniform, stain-based contrast without the vivid, specific fluorescence; phase contrast outlines structures with grayish halos but not bright labeled signals; electron microscopy reveals ultrastructure in grayscale at much higher resolution and does not rely on fluorescent labels.