question_answer 16)

  A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be (a) a single stranded RNA                                             (b) a single stranded DNA (c) either RNA or DNA                                                    (d) can be ssDNA but not ssRNA

Answer:

                  (c) A probe is a single stranded DNA or RNA tagged with a radioactive molecule. It is used to detect the complementary sequences by hybridization techniques.