CSI -DSP85I-P Bedienungsanleitung PDF herunterladen (Seite 5)

Process the unknown hair and the Comparison Microscope.

Label the three parts of a hair:

Focus the hair under the microscope. Click on each type of lighting. Look at the pictures and read.

Direct lighting is lighting from underneath. It reveals the inner structures of the hair.

Oblique lighting is lighting from the side, not underneath. This lighting highlights the cuticle or surface of the

hair.

Click on SEE EXAMPLES, Click on SEE EXAMPLES of each question.

What is the scale pattern of the cuticle? imbricate

What type of medulla does this hair have? absent

The hair found at the crime scene is a human hair.

Is there a follicle tag attached to the hair root? yes no

Is there any Nuclear DNA in this hair to test? yes no

93% of hairs that contain mitochondrial DNA.

Read about Nuclear DNA and Mitochondrial DNA.

What did you learn from this unidentified hair? The hair is from and unknown human.

What characteristics did you look at? scale pattern and medulla

What should you do next? Find a suspect that has a similar hair sample.

Click on Greg and then “I think I am done here” to unlock two locations, Vet’s Office and Murphy’s RV

cuticle

medulla

cortex

Worksheet created by Susannah M. Comfort - Teacher at Snell Farm Campus School, Bath, NY

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CSI -DSP85I-P Bedienungsanleitung Seite 5