Smallest segment of genetic material affected by mutation is

Options

A. Recon
B. Cistron
C. Muton
D. Exon

Answer

To solve the question "Smallest segment of genetic material affected by mutation is," we will analyze the provided options and determine which one correctly identifies the smallest segment of genetic material that can undergo mutation.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the smallest segment of genetic material that can be affected by a mutation. This means we need to identify a term that refers to a small unit of genetic information.

2. **Evaluate the Options**:
- **Recon**: This term refers to a unit of recombination, which is not specifically about mutation. Therefore, this option is incorrect.
- **Cistron**: This is the part of a gene that encodes a polypeptide. While it is a significant segment, it is not the smallest unit affected by mutation. Hence, this option is also incorrect.
- **Mutant**: This term refers to an organism or cell that has undergone a mutation. It can also refer to the specific change in the genetic material. This is the correct option as it represents the smallest unit capable of mutation, typically identified as a single pair of nucleotides.
- **Exon**: This is a part of a gene that codes for a portion of the final RNA product after introns have been removed. While important, it is not the smallest segment affected by mutation.

3. **Identify the Correct Answer**: After evaluating all options, the correct answer is **Mutant**. This term signifies the smallest segment of genetic material that can undergo a distinct mutation.

### Final Answer:
The smallest segment of genetic material affected by mutation is **Mutant**.

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