Processing math: 100%
Biology 204
Population Growth
Hardy-Weinberg Equilibrium
Genetic Drift
Natural Selection
Population Growth
User Inputs
r
-2
2
0
0
1
-2
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2
k
0
1,000
0
0
10
0
100
200
300
400
500
600
700
800
900
1,000
Initial pop size
0
100
0
0
1
0
10
20
30
40
50
60
70
80
90
100
Generations
0
100
0
0
10
0
10
20
30
40
50
60
70
80
90
100
Exponential Growth
Logistic growth
Equations
n
(
t
)
=
n
0
⋅
e
t
⋅
r
d
n
d
t
=
n
⋅
r
Equations
n
(
t
)
=
n
0
⋅
k
⋅
e
t
⋅
r
k
+
n
0
⋅
e
t
⋅
r
−
1
d
n
d
t
=
n
⋅
r
(
1
−
n
k
)
Hardy-Weinberg Equilibrium
User Inputs
Proportion of allele A
0
1
0
0
0.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Allele A is dominant
Genetic Drift
User Inputs
Starting proportion
0
1
0
0
0.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Number of populations
1
50
0
0
5
1
6
11
16
21
26
31
36
41
46
50
Show mean of populations
Population size
10
1,000
0
0
10
10
109
208
307
406
505
604
703
802
901
1,000
Number of alleles
2
20
0
0
10
2
4
6
8
10
12
14
16
18
20
Track an allele
Population size
10
30
0
0
10
10
12
14
16
18
20
22
24
26
28
30
Number of generations
10
100
0
0
10
10
19
28
37
46
55
64
73
82
91
100
Re-run
Tracking populations
Tracking alleles
Natural Selection
User Inputs
Initial proportion allele A
0
1
0
0
0.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Number of generations
10
100
0
0
10
10
19
28
37
46
55
64
73
82
91
100
Allele A is dominant
Fitness of phenotype 1
0
1
0
0
1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Fitness of phenotype 2
0
1
0
0
1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Fitness of phenotype 1
0
1
0
0
1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Fitness of phenotype 2
0
1
0
0
1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Fitness of phenotype 3
0
1
0
0
1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Anemia death rate
0
1
0
0
0.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Malaria death rate
0
1
0
0
0.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Use realistic death rate values
Initial proportion of carriers
0
1
0
0
0.05
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Population size
100
10,000
0
0
1,000
100
1,090
2,080
3,070
4,060
5,050
6,040
7,030
8,020
9,010
10,000
Simulate results
Re-run
Natural selection simulation
Sickle-cell anemia