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VocabCh03

  • Comparison microscope - A compound microscope that allows for side by side comparison of two samples.
  • Cortex - The region of a hair located outside the medulla containing pigment granules.
  • Cuticle - The tough outer covering of a hair composed of overlapping scales.
  • Gas Chromatography - A method of separating chemicals to establish their quantities.
  • Hair follicle - The actively growing root or base of a hair containing DNA and living cells.
  • Hair shaft - Part of the hair above the follicle, contains mitochondrial DNA
  • Keratin - A type of fibrous protein that makes up the majority of the cortex of a hair.
  • Medulla - The central core of a hair fiber.
  • Melanin granules - Bits of pigment found in the cortex of a hair.
  • Mitochondrial DNA (mtDNA) - Genetic material in the mitochondria of the cytoplasm of a cell, only inherited from the mother.
  • Nuclear DNA - Genetic material in the nucleus of the cell, a combination of DNA from the mother and father.
  • Neutron Activation Analysis - A method of analysis that determines composition of elements in a sample.
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