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Question

In numerical taxonomy, the taxonomic entity of the lowest rank used is ______________.

A
Operational taxonomic unit
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B
Individual
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C
Lines
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D
Taxon
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Solution

The correct option is A Operational taxonomic unit
A. Operational taxonomic unit
Solution : Taxon is the basic unit of taxonomy. It is defined as a group of one or more populations of a living being which is seen by taxonomists to form a unit. A classic example is African elephants from the genus Loxodonta which is widely accepted as a taxon. Operational taxonomy unit is used to categorize bacteria based on sequence similarity. Each of these clusters is intended to represent a taxonomic unit of a bacteria species or genus depending on the sequence.
So, the correct answer is option A.

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