Forensic science

Definition

Forensic science is the application of scientific methods and techniques to investigate crimes and analyze physical evidence. It plays a crucial role in criminal justice by providing objective findings from various types of evidence, including biological samples.

5 Must Know Facts For Your Next Test

1. Forensic science involves analyzing DNA, RNA, and proteins to identify individuals or determine biological relationships.
2. PCR (Polymerase Chain Reaction) is commonly used in forensic science to amplify small amounts of DNA for analysis.
3. Gel electrophoresis is a technique used to separate DNA fragments based on their size, aiding in the identification process.
4. DNA profiling can link a suspect to a crime scene by comparing genetic markers found in biological samples.
5. RNA sequencing in forensic science can help determine gene expression patterns, which may provide insights into the circumstances surrounding a crime.

Review Questions

• What role does PCR play in forensic science?
• How is gel electrophoresis utilized in the analysis of forensic evidence?
• Why is DNA profiling important for linking suspects to crime scenes?

Related terms

PCR (Polymerase Chain Reaction): A method used to amplify small segments of DNA for further analysis.

Gel Electrophoresis: A technique for separating DNA fragments based on their size using an electric field.

DNA Profiling: The process of determining an individual's unique DNA characteristics for identification purposes.