GENE FLOW CHART
Population
White Beads
20
Pink Beads
Red Beads
Initial Generation
10
10
16
8
Total Beads
Total Alleles
50
90
Before
After
20
10
17
6
9 + 5(gene flow) =
14
38
Second Generation
10
0.52
50
90
32
0.62
Before
9
After
Population
Initial
First Generation
p
38
Second Generation 32
Allele and Genotype Frequencies
p2
q
0.52
0.62
Third Generation
Fourth Generation
What happens to the frequency of the heterozygotes?
What happens to the frequency of the homozygotes?
2pq
q2