DNA or RNA fragment which is radioactive or chemically labile to detect a specific fragment?: (A) Probe, (B) Okazaki fragment, (C) Antibody, (D) Epitope
Answer is A. Probes are generally pieces of DNA or RNA labeled with a 32P-containing nucleotide--or fluorescently labeled nucleotides The probe must recognize a complementary sequence to be effective.Ref: Harper 27e, page no: 456