When Detecting Microorganisms, a Probe That Hybridizes to Sequences on Ribosomal

question 5

Multiple Choice

When detecting microorganisms, a probe that hybridizes to sequences on ribosomal RNA (rRNA) is generally used. This is because

• A) not all bacteria have DNA but they all have large quantities of ribosomal RNA.
• B) rRNA is in the cytoplasm so is easy to detect but DNA is in the nucleus so is harder to detect.
• C) cells that are dividing can have thousands of copies of rRNA, increasing the technique's sensitivity.
• D) RNA is a single-stranded molecule but DNA is a triple helix and must be denatured.
• E) These are all reasons that rRNA is targeted.

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Definitions:

Production Increase

The rise in the quantity of goods and services produced by a company over a specific period.

Total Variable Cost

The total of all expenses that change in direct proportion to the amount of goods or services produced.

Manufacturing Overhead Cost

All manufacturing costs that are not directly associated with the production process, including indirect materials, indirect labor, and other overhead costs.

Relevant Range

The spectrum of operations or magnitude within which the premises regarding constant and fluctuating cost dynamics hold true.