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melanism    
n. 黑变病

黑变病

melanism
n 1: a condition characterized by abnormal deposits of melanin
(especially in the skin) [synonym: {melanosis}, {melanism}]


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  • Melanism - Wikipedia
    Melanism, meaning a mutation that results in completely dark skin, does not exist in humans In humans, the amount of melanin is determined by three dominant alleles (AABBCC), and different ethnicities have varying amounts
  • Difference Between Albinism, Melanism And Leucism
    Albinism, melanism, and leucism are genetic conditions that affect pigmentation in animals and sometimes humans These conditions are related to melanin, the pigment responsible for the color of skin, hair, fur, feathers, and eyes
  • Melanistic Animals Pictures Facts, What Is Melanism In Animals?
    Melanism is a genetic mutation that occurs in many different types of animals, including mammals, reptiles and insects Among the best-known melanistic animals are the black leopards and jaguars known as panthers
  • What Is Melanism in Humans? A Scientific Explanation
    Melanism in humans refers to an unusual increase in pigmentation, leading to a marked darkening of skin, hair, and eyes This phenomenon occurs due to an excessive production or accumulation of melanin, the natural pigment responsible for color in the body
  • MELANISM Definition Meaning - Merriam-Webster
    The meaning of MELANISM is an increased amount of black or nearly black pigmentation (as of skin, feathers, or hair) of an individual or kind of organism
  • Melanism: Evolution in Action | Oxford Academic
    Melanism: Evolution in Action describes investigations into a ubiquitous biological phenomenon, the existence of dark, or melanic, forms of many species of mammals, insects, and some plants
  • Melanism - grokipedia. com
    Melanism is a genetic condition characterized by the excessive deposition of melanin pigment in an organism's tissues, resulting in abnormally dark coloration of the skin, fur, feathers, scales, or eyes relative to the typical phenotype of the species
  • Melanistic Animals - BioExpedition
    From enhanced camouflage to improved thermoregulation, melanism is an evolutionary adaptation that crops up throughout an astonishing breadth of species Melanism is mainly inherited and sometimes persists, spreading across multiple generations of species
  • What Is Melanism? The Genetics and Evolution - ScienceInsights
    While melanism is characterized by an excess of melanin production, albinism is the result of an inability to produce melanin altogether Furthermore, a melanistic animal is still a member of its original species, as the color change is a genetic polymorphism—a variation within the population
  • Inky black all over: The evolutionary implications of melanism
    Melanism, the incidence of unusual amounts of melanin resulting in black fur, feathers, or scales, is widespread in the animal kingdom The word is derived from the Greek melanos, for dark-colored





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