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

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.