tag:blogger.com,1999:blog-23374557.post-53066092467721879282007-12-31T21:33:00.000-08:002007-12-31T21:33:00.000-08:00You wrote, "Thus, biologists cannot explain homologous structures that are caused by different genes. First of all, yes biologist can explain them- it’s called convergent evolution." However, structures explained by convergent evolution are considered analogous, not homologous. By definition, homologous structures are those that have similarities due to common descent. Therefore, the genes should be similar, and any changes due to divergence over time should be evident in changes to the base sequence of the gene's DNA, not entirely new genes altogether.Kurthttp://www.blogger.com/profile/07619865629099150510noreply@blogger.com