Sentence examples for bases with a quality from inspiring English sources

The sequences showing >2 bases with a quality value below 20 QV in a 20-base window were trimmed.

'% Q39' is the percentage of bases with a quality score of less than or equal to 39 which is equivalent to an error rate of approximately 1 in 10,000 bases.

In this step, reads having more than 5 bases with a quality score below 10 (PHRED score) [12] and reads with sequence entropy below 0.85 were removed (where entropy was calculated by summing -p*log2(p) for each of the four bases; p is the frequency of a base in the read).

Bases with a quality score < 30 were not considered for subsequent analysis.

Of these, 901,200 reads containing more than five consecutive bases with a quality < 13 were removed.

Raw data was filtered by BGI to remove read pairs where either read contained adapters or greater than 50% of bases with a quality value <= 5.

Illumina reads containing at least one base with a quality score below 10 were removed, as well as duplicate reads using FastQ program.

In this approach, an error in the color sequence will scramble the remaining sequence, so we discarded all reads that contained any base with a quality value less than 18, for both '16S-SOLiD' dataset and 'Shotgun-SOLiD' dataset.

Quality assessment of the sequencing data (in FASTQ format) was done using FASTQC [ 31], followed by trimming of adapters and low-quality bases with a Phred quality score of less than 20 and filtering for a minimum read length of 36 using Trimmomatic [ 32].

Reads were quality filtered by trimming off bases with a Phred quality score <13, and then removing reads that were less than 25 bp long.

We first removed any read having fewer than 24 bases with a Phred quality score (Q) greater than 20; this is our 'low quality' filter.