| Number of genes | Base-pairs | % Coverage* | Number of amino-acid changes†| Number of genes with at least one amino-acid change†| ||
---|---|---|---|---|---|---|---|
 |  |  | B6 | D2 | Both |  |  |
Chromosome 1 | 121 | 125,385 | 84 (85) | 77 (80) | 67 (70) | 8 (8) | 6 (6) |
Chromosome 13 | 78 | 84,635 | 89 (90) | 57 (59) | 52 (55) | 36 (45) | 15 (19) |
Total | 199 | 210,020 | 86 (87) | 69 (71) | 61 (64) | 44 (53) | 21 (25) |