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Questions and Answers
Which type of enzyme is always present in a cell regardless of the presence of a substrate?
What type of enzyme is expressed only in the presence of its corresponding substrate?
What is the main characteristic of generalized transduction?
In specialized transduction, what is transferred during phage assembly?
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An F pilus is essential for:
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Study Notes
Enzymes
- Constitutive enzymes are always present and expressed in a cell, regardless of the presence of a substrate.
- Inducible enzymes are only expressed when their corresponding substrate is present.
Transduction
Generalized Transduction
- Involves random packing of bacterial DNA fragments inside phage heads during phage assembly.
Specialized Transduction
- Involves the transfer of specific host genes during phage assembly.
Conjugation
- F pilus is essential for chromosome transfer by conjugation.
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Description
Understand the difference between constitutive and inducible enzymes, and distinguish between generalized and specialized transduction in microbiology.
