JAMB - Biology (2007 - No. 30)
An accurate identification of a rapist can be carried out by conducting a
RNA analysis
DNA analysis
blood group text
behavioural traits test
คำอธิบาย
Each person's DNA is different, except for identical twins. This means that DNA can be used to accurately identify a perpetrator, similar to the way we use fingerprints. DNA evidence can be collected from blood, saliva, sweat, urine, skin tissue, and semen.
Biological evidence such as semen, blood, vaginal secretions, saliva, vaginal epithelial cells may be identified and genetically typed by a crime lab.