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.

---

Definitions:

Isocentric

Referring to something having a central focus or point that is equal in all directions; often used in geometric contexts.

Regional

Refers to activities, strategies, or influences focused on specific geographic areas or regions, often taking into account local customs, needs, or resources.

Cross-Border Merger

A transaction where companies from different countries merge to create a new entity or one absorbs the other, expanding their global footprint and operational reach.

Joint Venture

A business agreement between two or more parties to jointly undertake a specific project or business activity, sharing profits, losses, and control.