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what are the purposes and uses of DNA barcoding, and in which cases is used ?

what are the purposes and uses of DNA barcoding, and in which cases is used ?
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DNA barcoding is used for species identification a section of DNA from a specific gene.

Uses of DNA barcoding includes: Identification of species, Detection of invasive species, Delimiting cryptic species, Diet analysis and food web application, Barcoding for food safety and Biomonitoring and ecological assessment

Cases where DNA barcoding are used such as:

  • Identifying plant leaves even when flowers or fruits are not available
  • Identifying pollen collected on the bodies of pollinating animals
  • Identifying insect larvae which may have fewer diagnostic characters than adults
  • Investigating the diet of an animal based on its stomach content, saliva or feces
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