The function of polymerase chain reaction is

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding PCR**: The Polymerase Chain Reaction (PCR) is a laboratory technique used to amplify a specific segment of DNA. This means that it can make millions of copies of a particular DNA sequence from a small initial sample.

2. **Identifying the Options**: The question provides four options regarding the function of PCR:
- Option A: Transduction
- Option B: DNA amplification
- Option C: Translation
- Option D: None of these

3. **Analyzing Each Option**:
- **Option A (Transduction)**: This refers to the process of transferring foreign DNA into a cell using a virus as a vector. This is not a function of PCR, so this option is incorrect.
- **Option B (DNA amplification)**: This is the primary function of PCR, as it is specifically designed to amplify or make multiple copies of DNA. This option is correct.
- **Option C (Translation)**: Translation is the process of synthesizing proteins from mRNA. This is unrelated to PCR, making this option incorrect.
- **Option D (None of these)**: Since we have identified that option B is correct, this option is also incorrect.

4. **Conclusion**: Based on the analysis, the correct answer is **Option B: DNA amplification**. This indicates that the primary function of the Polymerase Chain Reaction is to amplify DNA.