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• 1 2023-10-20T18:58:15-07:00 Blood & DNA 7 plain 2023-10-20T23:40:26-07:00 Definitions
  
  Blood Typing
  ABO
  Every person’s blood is categorized as one of the four major types: A, B, AB, or O. Blood types are determined by the types of antigens on the blood cells. These antigens are proteins on the surface of blood cells that can trigger a response from the immune system. The Rh factor is a type of protein on the surface of red blood cells. People who have the Rh factor are Rh-positive and those without are Rh-negative.
  
  Rh factor
  Rh incompatibility is a condition that develops when a pregnant woman has Rh-negative blood and the baby in her womb has Rh-positive blood. If the mother is Rh-negative, her immune system treats Rh-positive fetal cells as if they were a foreign substance. The mother's body makes antibodies against the fetal blood cells. These antibodies may cross back through the placenta into the developing baby. It can become severe enough to cause serious illness, brain damage, or even death in the fetus or newborn.
  
  Chemistry
      Kastle-Meyer Color Test - phenolphthalein
          Potatoes and household bleach can trigger a response too!
      Tetramethylbenzidine
      Leucomalachite green
      Luminol
      Fluorescein 
  
  Resources
  
  Peer-Reviewed Scholarly Articles 
  
  An assessment of DNA extraction methods from blood-stained soil in forensic science. 
  https://uosc.primo.exlibrisgroup.com/permalink/01USC_INST/273cgt/cdi_proquest_miscellaneous_2736304353
  
  Performance Testing of a Semi-Automatic Card Punch System, Using Direct STR Profiling of DNA from Blood Samples on FTATM Cards. 
  https://uosc.primo.exlibrisgroup.com/permalink/01USC_INST/273cgt/cdi_proquest_miscellaneous_1652439007
  
  References
  
  https://americanpregnancy.org/healthy-pregnancy/pregnancy-complications/rh-factor/