Forensics: DNA Profiling

DNA profiling, developed in 1984 at Leicester University, revolutionized forensic science by enabling the identification of individuals through unique DNA patterns. Initially, the RFLP technique was used, requiring large DNA samples. However, PCR technology later allowed for more efficient and accurate profiling from smaller samples. DNA profiling is now a crucial tool in criminal justice, helping to convict criminals, eliminate suspects, and exonerate the innocent.

What was the initial purpose of DNA profiling when it was first developed?

• To map the human genome

• To study human evolution

• To identify genetic diseases

• To link individuals to crimes

Which university was responsible for the development of DNA profiling in 1984?

• Leicester University

• Oxford University

• Cambridge University

• Harvard University

What is the main limitation of the RFLP technique?

• It requires large amounts of DNA

• It cannot differentiate between individuals

• It is too expensive

• It is not accepted in court

How does PCR improve upon the RFLP technique?

• By reducing the cost of DNA analysis

• By allowing DNA replication from small samples

• By eliminating the need for enzymes

• By increasing the speed of analysis

What is one of the significant impacts of DNA profiling in forensic science?

• It is used to predict future crimes

• It assists in freeing innocent individuals

• It is used to create genetically modified organisms

• It helps in the study of ancient DNA