To answer the question, we need to understand the different types of operons:

1. **Constitutive operon**: This type of operon is always active, meaning it is continuously transcribed regardless of environmental conditions.
2. **Repressible operon**: This type of operon is usually active but can be turned off (repressed) when a specific substance is present.
3. **Inducible operon**: This type of operon is usually inactive but can be turned on (induced) in the presence of a specific substrate.
4. **Promoter**: This is a DNA sequence that initiates transcription but is not an operon itself.

Given the definition in the question, "an operon that is transcribed in response to the presence of a substrate," the correct answer is:

**inducible operon**

Question

To answer the question, we need to understand the different types of operons:

1. **Constitutive operon**: This type of operon is always active, meaning it is continuously transcribed regardless of environmental conditions.
2. **Repressible operon**: This type of operon is usually active but can be turned off (repressed) when a specific substance is present.
3. **Inducible operon**: This type of operon is usually inactive but can be turned on (induced) in the presence of a specific substrate.
4. **Promoter**: This is a DNA sequence that initiates transcription but is not an operon itself.

Given the definition in the question, "an operon that is transcribed in response to the presence of a substrate," the correct answer is:

**inducible operon**

Knowee AI · Accepted Answer

To answer the question, we need to understand the different types of operons:

1. **Constitutive operon**: This type of operon is always active, meaning it is continuously transcribed regardless of environmental conditions.
2. **Repressible operon**: This type of operon is usually active but can be turned off (repressed) when a specific substance is present.
3. **Inducible operon**: This type of operon is usually inactive but can be turned on (induced) in the presence of a specific substrate.
4. **Promoter**: This is a DNA sequence that initiates transcription but is not an operon itself.

Given the definition in the question, "an operon that is transcribed in response to the presence of a substrate," the correct answer is:

**inducible operon**

An operon that is transcribed in response to the presence of a substrate is called a(n) _______.ANSWERconstitutive operonrepressible operoninducible operonpromoter

Question

Solution

Similar Questions

Upgrade your grade with Knowee