Total Lengths of Mono-, Di-, and Trinucleotide Repeats in Exons[i]
| Repeated unit | Taxonomic group | ||||||||
| primates | rodentia | mammalia | vertebrata | arthropoda | C.elegans | embryophyta | S.cerevisiae | fungi | |
| A | 49 | 62 | 69 | 30 | 12 | 23 | 17 | 36 | 9 |
| C | – | – | – | 19 | – | 20 | 1 | – | – |
| AC | 4 | 29 | – | – | 21 | 16 | 4 | 5 | 2 |
| AG | 6 | 24 | 69 | – | 6 | 29 | 39 | – | – |
| AT | – | 17 | – | – | 7 | 9 | 7 | 14 | 2 |
| CG | – | – | 19 | – | – | – | – | – | – |
| AAC | 8 | – | – | – | 220 | 33 | 253 | 156 | 107 |
| AAG | 57 | 29 | 22 | 43 | – | 81 | 317 | 147 | 55 |
| AAT | – | – | – | – | 10 | 19 | 4 | 123 | 34 |
| ACC | 58 | 184 | 22 | 46 | 142 | 65 | 89 | 12 | 26 |
| ACG | 5 | – | 65 | 15 | 21 | 10 | 20 | 27 | 12 |
| ACT | 5 | – | – | – | – | 6 | 13 | 5 | 5 |
| AGC | 381 | 889 | 376 | 337 | 954 | 31 | 108 | 112 | 67 |
| AGG | 192 | 143 | 219 | 210 | 83 | 14 | 106 | 21 | 27 |
| ATC | 26 | 22 | 18 | 15 | 58 | 41 | 138 | 103 | 22 |
| CCG | 394 | 290 | 154 | 157 | 78 | 8 | 71 | – | 26 |
[i] Base pairs (bp) per megabase of DNA.