Figure 14

Stack (loop) numbers in pseudoknot RNA. We present the stack distributions based on 3000 random sequences of length 80 for cross₄ (lhs) and cross₅ (rhs). In addition we display the normal distributions (lighter) as implied by theory with the parameters μ₄ = 0.086554, ${\sigma }_4^2$ = 0.0055685 and μ₅ = 0.069467, ${\sigma }_5^2$ = 0.0039688.