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What utility can you imagine DNA barcoding having in answering ecological questions?

What utility can you imagine DNA barcoding having in answering ecological questions?

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DNA barcoding involves the use of a single gene that compares nucleotide sequences in the DNA to that in other species to identify a given species. The use of DNA barcodes, which are short gene sequences and used to identify species also has a application in genetic markers to address questions relating to the ecology and evolution of natural systems. These markers can be applied to address basic questions in ecology, evolutionary biology and conservation and assessing priority areas for environmental protection. The ecological information obtained from environmental system can be coupled with the understanding of evolutionary histories using these DNA barcodes , can assist in answering complex questions relevant to species assembly in ecology.

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