Hairs
Hair is an appendage of the skin that grows out of this organ.
These fibers are made from plants or animals.
What are natural fibers?
Hairs in the anagen phase may have this DNA rich attachment when pulled from the scalp.
What is a follicular tag?
Handwriting is this type of biometric.
What is behavioral?
This instrument is used to compare hairs and fibers found at a crime scene with exemplars.
What is a comparison microscope?
This is the main body of the hair shaft. It is embedded with pigment granules that give hair its color.
What is the cortex?
This is the most prevalent natural fiber.
What is cotton?
This packaging is best for hairs and fibers found at a crime scene or during autopsy.
What is an envelope?
This is an authentic sample used for comparison purposes, as in handwriting comparisons.
What is an exemplar?
Hair with a banded root can indicate this.
What is it came from a deceased individual?
This is the scale structure covering the outside of the hair.
What is the cuticle?
These fibers are derived from either natural or synthetic polymers.
What are manufactured fibers?
Hairs can only exhibit class characteristics when compared under a microscope. They must go on for this type of analysis to be considered individualistic.
What is DNA analysis?
These are impressions left on papers positioned under another piece of paper that has been written on.
What are indented writings?
Handwriting containing inks of different chemical compositions may be distinguished with photography using this type of film.
What is infrared film?
This is the cellular column running through the center of the hair. Human hair usually doesn't have one or it is fragmented.
What is the medulla?
The first step in examining fibers is to compare these two characteristics.
What are diameter and color?
Hairs from these two parts of the body should be collected during autopsy as exemplars.
What are head and pubic hairs?
Some inks, when exposed to blue-green light, absorb the light and give off infrared light. This is known as this phenomena.
What is infrared luminescence?
Dyes and inks can be separated by this technique.
What is thin layer chromatography?
These are the three phases of hair growth.
What are anagen, catagen and telogen?
Normally, fibers possess these types of characteristics.
What are class characteristics?
This type of DNA can be found in the hair shaft. It is inherited from your mother.
What is mitochondrial DNA?
Variations in the mechanical, physical and mental functions make handwriting this type of characteristic.
What is an individual characteristic?
This is the basic unit of a polymer.
What is a monomer?