probe

in biotechnology
https://doi.org/10.1351/goldbook.P04857
A specific @D01597@ or @R05386@ @ST06775@ which has been labelled by @R05092@, @F02453@ labels or @C01045@ labels and which is used to detect complementary sequences by @H02874@ techniques such as @B00686@ or colony @H02874@.
Source:
PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 163 [Terms] [Paper]