6 35.14 12.61 12.61 47.75 35.14 9.91 18.92 36.04 54.05 8.27.93 16.22 18.92 36.94 46.85 9.20.72 20.72 3.2 36.04 10.18.18 27.27 13.64 11.35.45 50.00 10.00 85.45 14.55 82.73 25.45 10.00 51.82 12.73 77.27 30.00 8.18 50.00 11.8 80.00 15.29.09 64.55 6.36 93.64 1 8.18 46.36 82.73 35.45 24.55 26.36 1182 50.00 9.09 79.09 21.82 14.55 56.36 7.27 78.18 20.00 17.27 56.36 6.36 76.36 (2)2字符串的排列出现的频率 A,T,C,G这4个字符组成了16种不同的2字符串.表2列出了20个样本中各2字 符串出现的频率.(用“滚动”算法,如 ATTCG有AT,TT,TC,CG共4个2字符串)程序与 附录一类似 表 AC AT AG TA TC TG TT CA CT CC CG GA GTGC GG 1.9.019.013.608.114.50904.503.603.603.601.808.1111.712.705411892 2.9917.213.605412701805415.414.50180909019914.5054121.62 3.54111.713.605.412.7018090905419090144113.51907.2123.42 4.18.92541117154110.811.805.4110.81541180 2.706.314.502.704.50 5.6318.111.807211802.702.703.605.414.502.7010.81991909.0121.62 6.15322706.319913.601801.805414.5000008.1110.81908.1119.82 7.15.3218010.817214.502.706.31541901809063113.51.904.5016.22 8.8.113.606.319.915413.602.707.212.703.601.808.1110.811.8072116.22 9.9.01904.50631003.607214.503.602.702.7011717213.6013.5118.02 10.6363.641.826.361825452.733.645453.644.5513.644.553.6413.6418.18 11.15452.7314.552.731636911.8230.009191911822.734.55.002.73 12.13.649110.9163615451821.82309191910091273727.004.55 13.6.364.5510.004.5512731.822.7334.552.732.731.821.823.644.551.822.73 14.8.189112.7372713.646.3618228.182.734.5500915454.55.9191 15.13.640012.7318213.640027348.18.00 001823.640091 16.16.363.6415459113.644.554.5522.731.8254500914.552.73.001.82 1717275.4510.911.8210.006.364.555454.557.279.092.733.642.733.643.64 18.8.1872711.8218215451.829130913.643.641.822.731823.64912.73 19.2.732.7313.641.8214.559.099131.821828.181.822.732.732.739191 20.6.366.366.36919.0910.003.6432.732.7313.6491001823.6400.916. 35.14 12.61 12.61 39.64 47.75 7. 35.14 9.91 18.92 36.04 54.05 8. 27.93 16.22 18.92 36.94 46.85 9. 20.72 20.72 15.32 43.24 36.04 10. 18.18 27.27 13.64 40.91 31.82 11. 35.45 4.55 50.00 10.00 85.45 12. 32.73 2.73 50.00 14.55 82.73 13. 25.45 10.00 51.82 12.73 77.27 14. 30.00 8.18 50.00 11.82 80.00 15. 29.09 .00 64.55 6.36 93.64 16. 36.36 8.18 46.36 9.09 82.73 17. 35.45 24.55 26.36 13.64 61.82 18. 29.09 11.82 50.00 9.09 79.09 19. 21.82 14.55 56.36 7.27 78.18 20. 20.00 17.27 56.36 6.36 76.36 （2）2 字符串的排列出现的频率 A，T，C，G 这 4 个字符组成了 16 种不同的 2 字符串．表 2 列出了 20 个样本中各 2 字 符串出现的频率．（用“滚动”算法，如 ATTCG 有 AT,TT,TC,CG 共 4 个 2 字符串）(程序与 附录一类似) 表 2 AA AC AT AG TA TC TG TT CA CT CC CG GA GT GC GG 1. 9.01 9.01 3.60 8.11 4.50 .90 4.50 3.60 3.60 3.60 1.80 8.11 11.7 1 2.70 5.41 18.92 2. 9.91 7.21 3.60 5.41 2.70 1.80 5.41 5.41 4.50 1.80 .90 9.01 9.91 4.50 5.41 21.62 3. 5.41 11.71 3.60 5.41 2.70 1.80 .90 .90 5.41 .90 .90 14.41 13.51 .90 7.21 23.42 4. 18.92 5.41 11.71 5.41 10.81 1.80 5.41 10.81 5.41 1.80 .90 2.70 6.31 4.50 2.70 4.50 5. 6.31 8.11 1.80 7.21 1.80 2.70 2.70 3.60 5.41 4.50 2.70 10.81 9.91 .90 9.01 21.62 6. 15.32 2.70 6.31 9.91 3.60 1.80 1.80 5.41 4.50 .00 .00 8.11 10.81 .90 8.11 19.82 7. 15.32 1.80 10.81 7.21 4.50 2.70 6.31 5.41 .90 1.80 .90 6.31 13.51 .90 4.50 16.22 8. 8.11 3.60 6.31 9.91 5.41 3.60 2.70 7.21 2.70 3.60 1.80 8.11 10.81 1.80 7.2116.22 9. 9.01 .90 4.50 6.31 .00 3.60 7.21 4.50 3.60 2.70 2.70 11.71 7.21 3.60 13.5118.02 10. 6.36 3.64 1.82 6.36 1.82 5.45 2.73 3.64 5.45 3.64 4.55 13.64 4.55 3.64 13.64 18.18 11. 15.45 2.73 14.55 2.73 16.36 .91 1.82 30.00 .91 .91 .91 1.82 2.73 4.55 .00 2.73 12. 13.64 .91 10.91 6.36 15.45 1.82 1.82 30.91 .91 .91 .00 .91 2.73 7.27 .00 4.55 13. 6.36 4.55 10.00 4.55 12.73 1.82 2.73 34.55 2.73 2.73 1.82 1.8 2 3.64 4.55 1.82 2.73 14. 8.18 .91 12.73 7.27 13.64 6.36 1.82 28.18 2.73 4.55 .00 .91 5.45 4.55 .91 .91 15.13.64 .00 12.73 1.82 13.64 .00 2.73 48.18 .00 .00 .00 .00 1.82 3.64 .00 .91 16. 16.36 3.64 15.45 .9113.64 4.55 4.55 22.73 1.82 5.45 .00 .91 4.55 2.73 .00 1.82 17.17.27 5.45 10.91 1.82 10.00 6.36 4.55 5.45 4.55 7.27 9.09 2.73 3.64 2.73 3.64 3.64 18.8.18 7.27 11.82 1.82 15.45 1.82 .91 30.91 3.64 3.64 1.82 2.73 1.82 3.64 .91 2.73 19.2.73 2.73 13.64 1.82 14.55 9.09 .913 1.82 1.82 8.18 1.82 2.73 2.73 2.73 .91 .91 20. 6.36 6.36 6.36 .91 9.09 10.00 3.64 32.73 2.73 13.64 .91 .00 1.82 3.64 .00 .91