Exploring DNA Modification Tools

What is the primary function of restriction enzymes in biotechnology?

• To amplify DNA sequences

• To cut DNA at specific sequences

• To separate DNA fragments by size

• To replicate DNA

Which of the following best describes the process of gel electrophoresis?

• It uses enzymes to cut DNA into smaller fragments.

• It amplifies DNA sequences for further analysis.

• It separates DNA fragments based on their size and charge.

• It identifies individuals based on their unique DNA patterns.

In the polymerase chain reaction (PCR), what is the role of the enzyme Taq polymerase?

• To cut DNA at specific sites

• To separate DNA strands

• To synthesize new DNA strands

• To identify DNA sequences

How does DNA fingerprinting help in forensic investigations?

• By amplifying DNA samples to create more evidence

• By cutting DNA into smaller fragments for analysis

• By comparing DNA patterns to identify individuals

• By separating DNA fragments by size

Explain why restriction enzymes are often referred to as "molecular scissors."

• They can amplify DNA sequences.

• They can cut DNA at specific nucleotide sequences.

• They can separate DNA fragments by size.

• They can replicate DNA.

Describe the importance of gel electrophoresis in the analysis of DNA.

• It allows for the amplification of DNA sequences.

• It enables the separation and visualization of DNA fragments.

• It helps in the replication of DNA.

• It identifies specific DNA sequences.

What is the significance of the denaturation step in PCR?

• It allows the DNA polymerase to synthesize new strands.

• It separates the DNA strands to allow primer binding.

• It cuts the DNA into smaller fragments.

• It identifies the DNA sequence to be amplified.

How does DNA fingerprinting utilize the concept of polymorphisms?

• By amplifying specific DNA sequences

• By cutting DNA at specific sites

• By analyzing variations in DNA sequences among individuals

• By separating DNA fragments by size

Which of the following is a key characteristic of restriction enzymes that makes them useful in genetic engineering?

• They can amplify DNA sequences.

• They recognize and cut specific DNA sequences.

• They separate DNA fragments by size.

• They synthesize new DNA strands.

What is the role of primers in the PCR process?

• To cut DNA at specific sites

• To initiate the synthesis of new DNA strands

• To separate DNA fragments by size

• To identify DNA sequences