DNA Fingerprinting Solving Mystery Quiz

What is the primary use of DNA fingerprinting in forensic science?

• Identifying genetic disorders

• Determining eye color

• Comparing DNA profiles to identify individuals

• Analyzing food composition

Which part of DNA is used in DNA profiling?

• The coding regions

• The non-coding regions

• Only the genes

• RNA molecules

What is the role of enzymes in DNA fingerprinting?

• To amplify DNA sequences

• To cut DNA at specific points

• To bond DNA strands together

• To add color to DNA

Which laboratory technique is used to separate DNA fragments by length?

• Polymerase Chain Reaction (PCR)

• Gel Electrophoresis

• DNA Sequencing

• Gene Cloning

How does gel electrophoresis separate DNA fragments?

• By their color

• By their electrical charge

• By their size and length

• By their temperature

Which of the following statements is true about DNA profiling?

• It identifies individuals based on genetic mutations.

• It compares short tandem repeats (STRs) in non-coding DNA regions.

• It always requires an exact match to prove guilt.

• It only works on living subjects.

Which enzyme is used in the Polymerase Chain Reaction (PCR) to copy DNA?

• Helicase

• DNA Polymerase

• Ligase

• Primase

What is the first step in creating a DNA fingerprint?

• Running gel electrophoresis

• Collecting a DNA sample

• Adding a primer

• Cutting DNA with enzymes

Reorder the following steps of the DNA Profiling method:

• Obtain DNA samples from the crime scene and suspects.

• Amplify the STR regions of DNA using Polymerase Chain Reaction (PCR).

• Cut the DNA into fragments using restriction enzymes.

• Run the fragments through a gel using gel electrophoresis.

• Compare the banding pattern of the DNA fingerprints. Then interpret the results to identify the suspect.