Concept explainers
What is convergent evolution and how is it different from horizontal gene transfer?
Microbial diversity understood from the functional diversity and phylogenetic diversity. The phylogenetic diversity deals with evolutionary relationship that exists among the microbes. The functional diversity deals with the forms as well as the functions because they are associated with microbial ecology and physiology.
Explanation of Solution
A common functional trait shared between different microbes, which have different 16S ribosomal RNA gene sequences that has occurred due to three reasons. They are horizontal gene transfer, convergent evolution and gene loss.
Convergent evolution defined by the occurrence in which single trait or groups of traits that are alike in function or forms between two organisms but they are not inherited from a common ancestor. This is different from horizontal gene transfer, where the genes that code for a particular trait are homologous and replaced by distantly related ancestors.
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Chapter 14 Solutions
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- Briefly explain what convergent evolution is.arrow_forwardHow is concept of a common ancestor and concept known as descent with modification interconnected?arrow_forwardCan you explain what convergent and divergent evolution is and explain why it may be hard to distinguish between the two..?arrow_forward
- How can horizontal gene transfer influence evolution? Would you be able to detect it using phylogeny? What about horizontal gene transfer makes reading bacterial trees difficult?arrow_forwardWhat is the most important mechanism that produces adaptive evolution?arrow_forwardExplain gene flow as a force of evolution (how does gene flow contribute to biological change?)arrow_forward
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