DNA Profiling

What is the main purpose of DNA profiling in forensic science?

• To identify a person’s blood type

• To determine the age of a suspect

• To match DNA evidence to a suspect or victim

• To analyze hair color

What does PCR (Polymerase Chain Reaction) do in DNA analysis?

• Destroys DNA samples

• Copies and amplifies DNA segments

• Changes the DNA sequence

• Identifies blood cells

Which of the following is a potential risk when using DNA profiling in criminal investigations?

• It's always accurate

• It can be used to identify family relationships

• It may lead to privacy concerns

• It's too slow to be useful

Why is it important to avoid contamination when collecting DNA evidence from a crime scene?

• It is important to avoid contamination to speed up the investigation process.
• It is important to avoid contamination to ensure the integrity and reliability of DNA evidence.
• Contamination can enhance the quality of DNA samples.
• Contamination is irrelevant to the analysis of DNA evidence.

DNA profiling can be used to solve crimes even if the case is several decades old.

• True

• False

DNA evidence alone is always enough to convict someone of a crime.

• True

• False

Which suspect is likely guilty?

• Suspect #1
• Suspect #2
• Suspect #3

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2