FSC239Y5 Lecture Notes - Lecture 22: Nuclear Dna, Ethylenediaminetetraacetic Acid, Chromosome
Document Summary
Investigative aid: supportive charges, public safety and protection, eliminate suspects (cid:523)when there"s a very large number of suspects, dna can eliminate possibilities, public service. Cfs clients: police, lawyers, coroners, pathologists, other official investigators (eg siu, ofm) Item types (cid:498)wearer(cid:499)/(cid:499) handler(cid:499: clothing (accused, complainant, witness, swabs (scene, saek, weapons (knives, guns, weapons of convenience, vehicles (car, bikes, human remains (bones, teeth, soft tissue, discard samples (cups, cig butts, gum) Process of how items are submitted: evidence recovered from scene, submitted by police, processed by cro at cfs (give barcode and item number, case assessed by scientist, screen item for body fluid, dna testing. Three teams in biology: screening unit. Process items for dna: dna unit. Dna in forensics: two copies per cell, dna identical in all cells, unique to each individual, str. Breaking open the cell with chemicals, freeing dna from the cell.
