Question

multiple choice question
which type of microscope is used in microbiology labs to examine both stained and unstained specimens?

• bright - field
• confocal
• phase - contrast
• dark - field

Explanation:

Bright-field microscopes are the standard in microbiology labs. They can visualize stained specimens (where stains enhance contrast) and can also be used for unstained specimens when sufficient natural contrast exists, unlike the other options which are specialized for specific contrast needs (confocal for 3D imaging, phase-contrast/dark-field for unstained specimens with low natural contrast but are not the primary choice for both stained and unstained samples).

Answer:

A. Bright-field