Experts in RNA Probes RNA, usually prepared by transcription
from cloned DNA, which complements a specific mRNA or DNA and is
generally used for studies of virus genes, distribution of
specific RNA in tissues and cells, integration of viral DNA into
genomes, transcription, etc. Whereas DNA PROBES are preferred
for use at a more macroscopic level for detection of the
presence of DNA/RNA from specific species or subspecies, RNA
probes are preferred for genetic studies. Conventional labels
for the RNA probe include radioisotope labels 32P and 125I and
the chemical label biotin. RNA probes may be further divided by
category into plus-sense RNA probes, minus-sense RNA probes, and
antisense RNA probes.