Question

multiple choice question
short, conserved rrna gene sequences that define and differentiate specific groups of microorganisms are called ______.
housekeeping gene sequences
point mutations
oligonucleotide signature sequences
transposable elements
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Explanation:

Housekeeping gene sequences are essential, widely expressed genes, not group-defining rRNA signatures. Point mutations are single base changes, not conserved differentiating sequences. Transposable elements are mobile genetic elements, unrelated to this definition. Oligonucleotide signature sequences are short, conserved rRNA segments used to distinguish specific microorganism groups.

Answer:

oligonucleotide signature sequences