| CPC C12Q 1/6874 (2013.01) [C12Q 1/6806 (2013.01); C12Q 1/6869 (2013.01); C12Q 1/6876 (2013.01); C12Q 2525/179 (2013.01); C12Q 2525/191 (2013.01); C12Q 2563/179 (2013.01); C12Q 2600/158 (2013.01)] | 8 Claims | 
| 
               1. A method of determining that both strands of an initial UID strand pair double-stranded template molecule are mutated comprising: 
            a) providing an initial UID strand pair double-stranded template molecule comprising a first nucleic acid strand and a second nucleic acid strand, and 
                wherein said initial UID strand pair double-stranded template molecule comprises a first UID at one end, and a second UID at the other end, 
                b) subjecting said initial UID strand pair double-stranded template molecule or amplicons thereof to paired-end run sequencing on a massively parallel sequencer to generate first paired-end reads and second paired-end reads; 
                c) differentiating which strand of said initial UID strand pair double-stranded template molecule is represented by said first and second paired-end reads based on the observed orientation and order of said first and second UIDs in said first and second paired-end reads when sequence information is obtained from said paired-end run sequencing; 
                d) grouping said first and second paired-end reads to yield a first UID family and a second UID family, wherein said first UID family comprises said first paired-end reads and said second UID family comprises said second paired-end reads; 
                e) comparing nucleotide sequences between members of said first UID family, and comparing nucleotide sequences between members of said second UID family, and identifying a first nucleotide sequence as accurately representing said first nucleic acid strand, and identifying a second nucleotide sequence as accurately representing said second nucleic acid strand of said initial UID strand pair double-stranded template molecule when at least 50% of members of said first UID family, and said second UID family, contain said first nucleotide sequence and said second nucleotide sequence respectively; and 
                f) determining that both strands of said initial UID strand pair double-stranded template molecule are mutated by detecting a difference in said first and second nucleotide sequences at the same position with respect to a reference. 
               |