Figure 7From: Efficient digest of high-throughput sequencing data in a reproducible reportBase frequency. (A) Frequency of N (uncalled) bases due to low quality or ambiguity. (B) Expected versus observed base frequency. (C) Distribution of per-read GC percentages. (D) Position-specific base frequencies at the beginning of reads, which shows a bias in favor of bases G and A to start the sequencing with.Back to article page