Digression - case, the offspring will likely be viable....

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Digression. .. What is a species? From Campbell, (p. 437-438): 4 different ways of putting it. ..From Freeman & Herron (1998) Evolutionary Analysis, Prentice Hall, Upper Saddle River. p. 314. NOTE - genetic exchange between species: these imply that hybrid offspring (product of mating between members of two species) can not themselves mate and produce viable offspring. However, there are documented cases where hybrid offspring successfully mate with members of one or the other species of their parents. In this
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Unformatted text preview: case, the offspring will likely be viable. This is one example where genes from one species can be transferred to a second species (in general, a closely related species). Another mechanisms of genetic exchange between species involve retroviral transfer, where a retrovirus will integrate into a host genome, pick up some host genetic material, then later leave and infect another host (often a different species) and so transfer genetic material between species....
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