The function of polymerase chain reaction (PCR) is

Options

A. Translation
B. Transcription
C. DNA amplification
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding PCR**: The Polymerase Chain Reaction (PCR) is a molecular biology technique used to amplify or make multiple copies of a specific segment of DNA.

2. **Purpose of PCR**: The primary function of PCR is to increase the quantity of DNA, making it easier to analyze small or limited samples. This is particularly useful in various fields, including forensic science, where only trace amounts of DNA may be available.

3. **Analyzing the Options**:
- **Translation**: This is the process of synthesizing proteins from RNA. It is not related to DNA amplification.
- **Transcription**: This refers to the process of converting DNA into RNA. Again, this does not pertain to amplifying DNA.
- **DNA Amplification**: This is the process of creating multiple copies of DNA, which is precisely what PCR does.
- **None of these**: This option can be disregarded as we have identified a correct answer.

4. **Conclusion**: Based on the analysis, the function of PCR is best described as "DNA amplification".

**Final Answer**: The function of polymerase chain reaction (PCR) is DNA amplification.

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