Vocab

the region of a hair located outside the medulla that contains granules of pigment

a compound microscope that allows the side-by-side comparison of samples, such as hair or fibers

the tough outer covering of a hair that is composed of overlapping scales

the actively growing base of a hair that contains DNA and living cells

part of the hair above the follicle; contains mitochondrial DNA

a method of separating chemicals to establish their quantities

a technology that allows examiners to analyze ratios of isotopes each of oxygen, hydrogen, carbon, nitrogen, and sulfur

diferent forms of an element that differ in their atomic mass and number of neutrons

the central core of a hair

or isotope fingerprint is a ratio of different isotopes found in an individual