Questions: Question 39 1 pts What is the purpose of PCR (Polymerase Chain Reaction)? To analyze DNA fingerprints To amplify specific DNA sequences To cut DNA at specific sites To sequence entire genomes

Question 39
1 pts

What is the purpose of PCR (Polymerase Chain Reaction)?
To analyze DNA fingerprints
To amplify specific DNA sequences
To cut DNA at specific sites
To sequence entire genomes

Transcript text: Question 39 1 pts What is the purpose of PCR (Polymerase Chain Reaction)? To analyze DNA fingerprints To amplify specific DNA sequences To cut DNA at specific sites To sequence entire genomes

Solution

The answer is the second one: To amplify specific DNA sequences.

Explanation for each option:

To analyze DNA fingerprints: This is incorrect. While PCR can be a step in the process of analyzing DNA fingerprints, its primary purpose is not to analyze but to amplify DNA.
To amplify specific DNA sequences: This is correct. The main purpose of PCR is to make millions of copies of a specific DNA sequence, allowing for further analysis or experimentation.
To cut DNA at specific sites: This is incorrect. Cutting DNA at specific sites is the function of restriction enzymes, not PCR.
To sequence entire genomes: This is incorrect. Sequencing entire genomes involves determining the order of nucleotides in DNA, which is a different process from PCR.

Summary: The purpose of PCR (Polymerase Chain Reaction) is to amplify specific DNA sequences.

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