Which statement about flagella is false? Question 9 options: a) Eukaryotic flagella are made of a protein called tubulin. b) Eukaryotic flagella move in a wavelike motion. c) Prokaryotic flagella rotate. d) Prokaryotic flagella are composed of a protein called flagellin. e) Prokaryotic flagella can transfer DNA between cells. f) None of the above statements is false.
Microscopic examination
The analysis of minute organisms, cellular organization of any biological structure, and composition of body fluids with the help of a microscope is known as microscopic examination. The magnification of specimens or samples under study helps in attaining a clearer picture of it.
Gram Staining
Named after Hans Christian Gram, a Danish bacteriologist, Gram stain is one of the most powerful staining techniques within microbiology. This technique was introduced in 1882 to identify pneumonia-causing organisms. The Gram staining technique uses crystal violet or methylene blue as primary staining colors to distinguish gram-positive from gram-negative organisms. Under a microscope, the gram-positive organisms appear purple-brown, retaining the primary color. Gram-negative organisms appear pink or red as they do not acquire the color of the primary stain.
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