Multiple Choice
In blue-white screening used to identify recombinant bacteria, why are white colonies considered desirable rather than blue colonies?
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7. Prokaryotic Cell Structures & Functions
Introduction to Bacterial Cell Walls
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In the context of bacterial cell structure, which component of the flagellum is responsible for anchoring the flagellum to the cell wall and plasma membrane?
A
Filament
B
Hook
C
Pilus
D
Basal body
Verified step by step guidance1
Understand the structure of the bacterial flagellum, which consists of three main parts: the filament, the hook, and the basal body.
Recognize that the filament is the long, whip-like structure that extends outside the cell and is responsible for motility.
Know that the hook connects the filament to the basal body and acts as a flexible coupling.
Identify the basal body as the component embedded in the cell envelope, anchoring the flagellum to the cell wall and plasma membrane.
Recall that the pilus is a different structure used for attachment and conjugation, not part of the flagellum.
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