STB 314 Theory Questions: Microscopy Techniques, Staining Methods, and Fixatives in Biological Sciences

300 Level Department of Science Laboratory Technology exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.

Questions:

(a) Write short notes on the following types of microscopes stating their specific purposes in Biological sciences:
(i) Fluorescence Microscope,
(ii) Phase contrast Microscope,
(iii) Dark field Microscope.

(b) Explain the preparation methods of the following stains:
(i) Fast green stain,
(ii) Basic fuchsin,
(iii) Crystal violet,
(iv) Giemsa stain.

(c) Distinguish between cytological and cytoplasmic fixatives.

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