Exploring DNA Testing Methods

Which DNA testing method involves cutting DNA into fragments using restriction enzymes and separating them by size using gel electrophoresis?

• PCR (Polymerase Chain Reaction)

• RFLP (Restriction Fragment Length Polymorphism)

• STR (Short Tandem Repeat)

• DNA fingerprinting

What is the primary advantage of using PCR in DNA analysis?

• It requires a large amount of DNA sample.

• It can amplify small amounts of DNA to produce enough material for analysis.

• It provides the most detailed DNA profile.

• It is the fastest method available.

Which DNA testing method is most commonly used in forensic science due to its high discrimination power and ability to analyze degraded samples?

• RFLP

• PCR

• STR

• DNA fingerprinting

DNA fingerprinting is primarily used for which of the following purposes?

• Identifying genetic disorders

• Determining paternity

• Criminal identification and forensic investigations

• Cloning organisms

When selecting a DNA testing method, which factor is NOT typically considered by forensic scientists?

• The type of sample available

• The size of the sample

• The cost of the testing method

• The information needed from the analysis

Which of the following statements about STR analysis is true?

• STR analysis requires a large, intact DNA sample.

• STRs are regions of DNA that contain short sequences repeated many times.

• STR analysis is less reliable than RFLP.

• STR analysis cannot be used on degraded DNA samples.

What is the main purpose of using gel electrophoresis in DNA analysis?

• To sequence the DNA

• To amplify the DNA

• To separate DNA fragments by size

• To cut DNA into fragments

Which DNA testing method is best suited for analyzing very old or degraded samples?

• RFLP

• PCR

• STR

• DNA fingerprinting

In forensic science, why is it important to select the appropriate DNA testing method based on the sample type?

• To ensure the fastest results

• To minimize the cost of analysis

• To obtain the most accurate and reliable results

• To comply with legal requirements

Which of the following is a limitation of the RFLP method in forensic DNA analysis?

• It cannot be used on degraded samples.

• It is less accurate than other methods.

• It requires a very small amount of DNA.

• It is not accepted in court.