Name the DNA polymerase which is usually used for PCR?

Explanation

**Step-by-Step Solution:**

1. **Understanding PCR**: The question asks about the DNA polymerase used in the Polymerase Chain Reaction (PCR). PCR is a laboratory technique used to amplify DNA, producing multiple copies of a specific DNA segment.

2. **Role of DNA Polymerase in PCR**: In the PCR process, DNA polymerase is crucial as it synthesizes new DNA strands by adding nucleotides to the existing strands during the extension phase of the cycle.

3. **High Temperature Requirement**: PCR involves high temperatures for the denaturation of DNA strands. This means that the DNA must be able to withstand these high temperatures without losing its functionality.

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