Table 1

Mutations can vary by eight orders of magnitude

ScaleNature
<0.1 bpMethylation (5methylC → C)
1 bpTransitions, transvertions (A → G, C → T, etc)
1–10 bpDeletions, insertions, deletion–insertions
10–102 bpDeletions, insertions, invertions, duplications
102–103 bpWhole exon(s) ±intron(s)
103–105 bpWhole gene
106–107 bpContiguous arrays of genes
107–108 bpSegments/whole chromosomes