Overview
Read the following article. Based on what you have learnt this week about forensic serology, discuss the advantage and disadvantages of using methylation analysis for body fluid identification over classical serological techniques. Must be at least 350 words. (Article is attached for this part)
Separate page:
Why would you perform presumptive serology tests? Why not send everything straight to the DNA unit? (3 points)
Suppose that you had a sample consisting of only red blood cells. What presumptive tests could you perform? What could not be done and why? (5 points)
- You are at the Forensic Biology Section of the Miami Dade Crime lab and you receive a blanket with presumptive semen stains as a result of a sexual assault. However, according to the detective´s report, an overturned bowl of grapes and watermelon was found at the scene, as well as a broken glass that had contained wine. Which presumptive and confirmatory tests for semen would you apply to this evidence? Please, explain. (10 points)
- What is the difference between a presumptive test and a confirmatory test? (2 points)
- What advantages might methylation analyses bring to sample characterization?(5 points)