Question

OTU (Operational Taxonomic Unit)

31 Jan 2026
Answer :
Word Count : 235
An Operational Taxonomic Unit (OTU) is a fundamental concept in the study of biodiversity, particularly in microbial ecology and taxonomy. It is used to classify and categorize organisms based on shared characteristics, such as genetic similarity or phenotypic traits, without necessarily assigning them to a formal species rank. In molecular ecology, OTUs are often defined based on DNA sequence similarity thresholds, typically set at 97% identity for bacterial 16S rRNA gene sequences. This allows researchers to group genetically
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