1. 

   Two-Species Model

   out of 5 stars 

   19 Aug 2024 | Contributor(s): Anton E Weisstein, Rene Salinas, John Jungck | doi:10.25334/VGXD-SE94

   These two Excel worksheets simulate the population growth of two interacting species. In isolation, each species grows logistically, but interaction effects between species may limit or enhance that growth.

2. 

   Split Decomp

   out of 5 stars 

   19 Aug 2024 | Contributor(s): Anton E Weisstein, John Jungck | doi:10.25334/1SCD-8P78

   This Excel worksheet performs split decomposition on a set of four DNA sequences and their associated amino acid sequences. The user can type in the sequences or paste them in from a text file.

3. 

   Phylogeography Simulator

   out of 5 stars 

   19 Aug 2024 | Contributor(s): Anton E Weisstein | doi:10.25334/NS40-AB64

   This Excel workbook simulates the phylogeography of an asexually reproducing species.

4. 

   Operon

   out of 5 stars 

   19 Aug 2024 | Contributor(s): Anton E Weisstein | doi:10.25334/0HM4-A428

   This Excel workbook models lac operon function in a partial diploid E. coli. The user chooses the bacterial genotype and the sugars present in the surrounding medium: the workbook then determines which structural genes will be expressed.

5. 

   Linkage Analysis

   out of 5 stars 

   18 Aug 2024 | Contributor(s): Anton E Weisstein | doi:10.25334/H2Y4-SB61

   This Excel workbook simulates a linkage analysis problem with up to four alleles. Based on the offspring produced by a multihybrid testcross, the user builds a model of the gene order, recombination frequencies, and linkage phase in the hybrid parent.

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