Question Detail
Question
Which type of light microscope is specifically mentioned for observing live spirochetes that cause syphilis, where a light object is seen on a dark background?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Page 9, point 2 describes the "dark-field microscope" as being "used to observe live spirochetes... A light object is seen on a dark background."
Hint
The description mentions a 'dark background' for viewing the specimen.