PopGene.S2: is a free software to study population genetics. It consists of eight modules, each one directed for one feature of population genetics.

Modules are:
1. Allele and genotype frequencies representation
2. Panimixa - autosomal and X-linked case, De Finetti's parabola
3. Assortative Matings - positive, negative, w/ or w/o dominance, forbidden sterile
4. Drift - with "soft selection" and mutation
5. Markov process
6. Mutation - irreversible, two way and neutral
7. Gene Flow - continent-island, island-island, F statistics, Wahlund effect
8. Linkage disequilibrium and Magnitude of D
9. Selection - general model and frequency dependent selection
10. Effective population size
11. Molecular population genetics
12. Muller's ratchet

Requirements:
* NET Framework

The license of this software is Freeware, you can free download and free use this calculator software.