Question

Annette is a forensic technician. She is testing a hair found at a crime scene to determine if it came from an animal or a human. Which part of

the hair shaft should she measure for diameter?
Annette should measure the
to see if it is less than one-third the diameter of the hair shaft, which would indicate it is human hair.

Answer 1

Any single hair from anywhere on the human body can be used to identify a person. This conclusion is one of the key findings from a nearly year-long study by a team of researchers from Lawrence Livermore National Laboratory's (LLNL) Forensic Science Center (FSC) and Michigan State University.

Step-by-step explanation:

human hair. Hair is used as class evidence, and can be used as individual evidence if theres a follicle attached. ... The shaft of a mature human hair does not contain nuclear DNA so that only mitochondrial DNA analysis is possible for such samples.

Answer 2

Answer: Annette should measure the Medulla

Step-by-step explanation:

The medulla is less than one third on humans and more than one half on animals hence why it would indicate whether it’s human hair or animal hair