+---------------------------------------------------------------------------------------------------------------------------+ | ABSOLUTE FREQUENCIES. | +-------+------------------------------+----------------+-------------------------------------------------------------------+ | | | | Grade of openness in offspring. | | Table | Nature of mating (parental | Nature of +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-------+ | No. | nostril). | mating. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Total | +-------+------------------------------+----------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-------+ | 45 | High × high | D × D | 2 | 2 | 1 | 1 | 6 | 5 | 8 | 28 | 39 | 27 | 119 | | 46 | High × low | D × R | 13 | 19 | 9 | 7 | 2 | 4 | 1 | 1 | ... | ... | 56 | | 47 | Heterozygous × low | DR × R | 23 | 14 | 9 | 2 | 4 | ... | 1 | ... | ... | ... | 53 | | 48 | Heterozygous × heterozygous | DR × DR | 90 | 140 | 86 | 20 | 21 | 18 | 9 | 13 | 17 | 6 | 420 | | 49 | Do. | F2(DR × DR) | 117 | 171 | 129 | 54 | 40 | 11 | 19 | 39 | 57 | 41 | 678 | | 50 | Heterozygous × high | DR × D | 10 | 13 | 10 | 5 | 4 | 1 | 2 | 8 | 6 | 2 | 61 | | 51 | Do. | DR × DD | 71 | 96 | 73 | 30 | 39 | 24 | 23 | 95 | 119 | 68 | 638 | | 52 | Extra high × high | DD × DD | 9 | 19 | 18 | 15 | 14 | 8 | 22 | 93 | 169 | 105 | 472 | | 53 | Heterozygous × extracted low | DR × RR | 40 | 35 | 26 | 7 | 3 | 1 | ... | ... | ... | ... | 112 | | 54 | Extra low × low | RR × RR | 8 | 8 | ... | ... | ... | ... | ... | ... | ... | ... | 16 | | | | +-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-------+ | | Totals | | 378 | 512 | 361 | 141 | 133 | 72 | 85 | 277 | 407 | 249 | ... | +-------+------------------------------+----------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-------+ | PERCENTAGES. | +-------+------------------------------+----------------+-------------------------------------------------------------------+ | | | | Grade of openness in offspring. |