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Solvable senescence model with positive mutations | | J.B.Coe
; Y.Mao
; M.E.Cates
; | | Date: |
1 Nov 2004 | | Journal: | Physical Review E 70, 021907 (2004) DOI: 10.1103/PhysRevE.70.021907 | | Subject: | Populations and Evolution | q-bio.PE | | Abstract: | We build upon our previous analytical results for the Penna model of senescence to include positive mutations. We investigate whether a small but non-zero positive mutation rate gives qualitatively different results to the traditional Penna model in which no positive mutations are considered. We find that the high-lifespan tail of the distribution is radically changed in structure, but that there is not much effect on the bulk of the population. Th e mortality plateau that we found previously for a stochastic generalization of the Penna model is stable to a small positive mutation rate. | | Source: | arXiv, q-bio.PE/0411002 | | Services: | Forum | Review | PDF | Favorites | |
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