e asexual populations. Stat Phys 138: 381-410. 25. Ikrrida B. Peliti L(1991) Evolution in a at fitness landscape. Bull Math Bid 53: 355:381. 26. Stadler PF (2002) Fitness landscapes. Appl Math & Gummi 117: 1117 207. 27. Warden RP (1995) A speed limit I'm evoloin.,J Thom- Biol 176: 137-151. 28. Crow IF,