Which Bacillus species is nonmotile?

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Prepare for the Clinical Laboratory Science Bacteriology Test. Engage with multiple choice questions and flashcards with helpful hints and explanations. Ace your exam confidently!

Multiple Choice

Which Bacillus species is nonmotile?

Explanation:
Nonmotility distinguishes Bacillus anthracis from many other Bacillus species. While B. cereus, B. subtilis, and B. thuringiensis all possess flagella and are capable of movement (motile) in standard tests, B. anthracis does not have functional flagella in typical laboratory strains and remains nonmotile. This trait, together with its capsule formation and other diagnostic features, helps identify it in the lab.

Nonmotility distinguishes Bacillus anthracis from many other Bacillus species. While B. cereus, B. subtilis, and B. thuringiensis all possess flagella and are capable of movement (motile) in standard tests, B. anthracis does not have functional flagella in typical laboratory strains and remains nonmotile. This trait, together with its capsule formation and other diagnostic features, helps identify it in the lab.

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