Forensic Serology
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each of the black spaces below before clicking
on it to display the answer.
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| serology | study of blood
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| blood | refers to a highly complex mixture of cells, enzymes, proteins, and inorganic substances
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| plasma | fluid portion of blood
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| erythrocytes | red blood cells
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| leukocytes | white blood cells
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| platelets | solid materials in the plasma
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| antigens | usually proteins, are located on the surface of red blood cells and are responsible for blood-type characteristics
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| 55 | blood is ?% plasma
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| 45 | blood is ?% cellular components
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| away | the main arteries carry blood _______ the heart
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| to | veins carry blood _________ the heart
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| blood pressure provided by the heart pumping fluid around | blood spurts out from the arteries and veins because ?
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| bone marrow | blood cells formed in the ?
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| die | blood cells never ?
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| white blood cells | immune system
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| red blood cells (no nucleus/DNA) | oxygen
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| A-B-O and Rh systems | blood typing
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| Karl Landsteiner | discovered A-B-O and Rh
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| D antigen | Rh factor is determined by the presence of ?
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| serum | liquid that separates from the blood when clotting
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| Kastle-Meyer | uses H2O2 + phenolphthalein to produce a bright pink color in the detection of peroxidase activity in the blood
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| leucomalachite green | dropped on the suspected blood stain. a positive blood result will immediately turn the swab greenish-blue
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| tetramethylbenzidine | test by placing drops on a suspected stain. a positive reaction is indicated by an intense blue color
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| luminol | used in investigation tv shows. involves spraying the chemical onto the suspected blood stain and viewing it in total darkness
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| luminol | capable of detecting bloodstains diluted up to 300,000 times
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| preciptin test | indicates which species the blood belongs to
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| width/length then take the inverse sin | arcsin
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| travel | narrow end of a blood drop will point in the direction of ?
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| point of origin | if you have more than one drop, the ? can be determined
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| acid phosphatase | enzyme present in high concentrations of semen
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| oligospermia | abnormally low sperm count
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| aspermia | absence of sperm or sterility
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| Locard's Exchange Principle | theres always some evidence left behind
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| 4-6 hours | sperm can survive up to ? in the vaginal cavity
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| 3 days | nonmotile sperm may be found up to ?
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| 48 hrs | acid phosphatase can be detected up to ?
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