In performing a bacterial spore staining techniques, the primary stain is
A. Methylene blue
B. Cotton phenol blue
C. Carbolfuchsin
D. Malachite green
E. Crystal violet
Ans: D. Malachite green
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Membranes of thermophilic bacteria are stabilized by phospholipids with
A. fatty acids that tend to be more saturated. B. All of the choices are correct. C. fatty acids that have more double bonds. D. fatty acids that have lower molecular weights.
Distinguish between a circadian clock and circadian rhythm
What will be an ideal response?
Crossing over is facilitated by a ____ orientation between homologous chromosomes.
A. tightly angled B. separated, perpendicular C. tight, perpendicular D. separated, parallel E. tight, parallel
The nuclear envelope is perforated with openings called nuclear ________ that regulate the movement of molecules through the envelope.
Fill in the blank(s) with the appropriate word(s).