- melanin test
- see Thormдhlen t.
Medical dictionary. 2011.
melanin test
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Melanin theory — is a pseudoscientific theory, founded in the distortion of the known physical properties of melanin, a natural polymer and organic semiconductor.[1] In humans, melanin is the primary determinant of skin color. People whose ancestors lived for… … Wikipedia
Melanin — Not to be confused with melamine, melatonin, or Melanotan (disambiguation). Melanin pigment (dark granular material center of image) in a pigmented melanoma. Pap stain. Melanin … Wikipedia
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
Medical test — Intervention X ray of a hand. X rays are a common medical test. MeSH … Wikipedia
Thormдhlen test — (for melanin in urine) treat urine with a solution of sodium nitroprusside, potassium hydroxide, and acetic acid; if melanin is present, a deep blue color will form … Medical dictionary
ferric chloride test — ferric chloride in acidic solution is added to a urine specimen; many substances are oxidized giving colored products. Positive reactions are given by melanin, acetoacetic acid, bilirubin, phenothiazines, salicylates, and the keto acids present… … Medical dictionary
Human skin color — Skin pigmentation redirects here. For animal skin pigmentation, see Biological pigment. Variety of skin colors Human skin color is primarily due to the presence of melanin in the skin. Skin color ranges from almost black to white with a pinkish… … Wikipedia
Melanoma — Classification and external resources A melanoma ICD 10 C43 … Wikipedia
Labrador Retriever coat colour genetics — The genetic basis of coat colour in the Labrador Retriever (a highly popular type of dog) has been widely studied, and found to depend on many genes. A wide range of colourings have developed over time.This article examines the current knowledge… … Wikipedia
Black supremacy — is a racist [ [http://dictionary.reference.com/browse/racist The word racist hatred or intolerance of another race or other races.] ] ideology based on the assertion that black people are superior to other racial groups.NatureIn Killing Rage:… … Wikipedia
