The sequences of the second portions of {TAIL ~ the binding oligonucleotides} may be different as long as each sequence is complementary to {HEAD ~ a portion} of the sequence of the nucleic acid to be detected 
The sequences of the second portions of { TAIL ~ the binding oligonucleotides } may be different as long as each sequence is complementary to { HEAD ~ a portion } of the sequence of the nucleic acid to be detected
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH