Table 3. χ2 test results for four non-random IC subsets versus their IC complements.
| Type of comparison |
Receptor subset versus IC complement |
Kinase subset versus IC complement |
Short_gene subset versus
IC complement |
Long_gene subset versus IC complement |
| χ2 (nucleotide) | 88 | 12 | 22 | 46 |
| χ2 (amino acid) | 115 | 59 | 140 | 160 |
| χ2 (codon) | 406 | 115 | 236 | 363 |
| χ2 (codon_N1) | 781 | 320 | 508 | 698 |
| χ2 (codon_N1N2) | 1821 | 1040 | 1313 | 1656 |
| χ2 (dicodon) | 3635 | 2538 | 2911 | 3473 |
| χ2 (4mer oligo)a | 806 | 352 | 467 | 903 |
| χ2 (5mer oligo)a | 1839 | 1167 | 1340 | 2038 |
| χ2 (6mer oligo)a | 5013 | 3979 | 4219 | 5487 |
an-mer oligonucleotides counted in all possible reading frames. A codon with context, however, is an oligonucleotide counted in the first reading frame only (see Materials and Methods).