Abstract: This disclosure relates to reagents, mixtures, kits and methods for use in detecting low-frequency target polynucleotides, such as rare allelic variants.

Abstract: A method for quantitation of biological material in a biological sample is provided. The method includes receiving amplification data from amplification of a first and a second reference sample and receiving amplification data from amplification of a biological sample. The method further includes determining an efficiency from the received amplification data from amplification of the first and second reference sample. The method includes determining a relative PCR efficiency for the biological sample. Next, the method includes determining a quantity of biological material in the biological sample using the relative PCR efficiency.

Abstract: A method for quantitation of biological material in a biological sample is provided. The method includes receiving amplification data from amplification of a first and a second reference sample and receiving amplification data from amplification of a biological sample. The method further includes determining an efficiency from the received amplification data from amplification of the first and second reference sample. The method includes determining a relative PCR efficiency for the biological sample. Next, the method includes determining a quantity of biological material in the biological sample using the relative PCR efficiency.

Abstract: An enrichment module and method are provided for enriching a population of templated beads and separating them from non-templated beads. The method can include hybridizing a templated bead with an enrichment bead to form a complex, trapping the complex in a filtration medium, washing non-templated beads through the filtration medium while retaining the complex, and then eluting the templated bead from the complex. The module can include a column for enrichment and filtration material exhibiting desired size-exclusion properties.

Abstract: A system for performing quality control for nucleic acid sample sequencing is disclosed. The system has a set of solid supports, each support having attached thereto a plurality of nucleic acid sequences. The set has plural groups of solid supports and each group contains solid supports having the same nucleic acid sequences attached thereto. The nucleic acid sequences of each group differ from each other. The nucleic acid sequences are synthetically derived. A method of preparing a quality control for performing nucleic acid sample sequencing and a method of validating a nucleic acid sequencing instrument are also disclosed.