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Which of the following statements explains why paralogous genes can diverge from each other within the same gene pool, whereas orthologous genes diverge only after gene pools are isolated from each other? Access easy-to-understand explanations and practical examples on key biology topics, from cells to ecosystems.
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23 lis 2024 · Orthologs, or orthologous genes, are genes in different species that originated by vertical descent from a single gene of the last common ancestor. For instance, the plant Flu regulatory protein is present both in Arabidopsis (multicellular higher plant) and Chlamydomonas (single cell green algae).
Both orthologs and paralogs are types of homologs, that is, they denote genes that derive from the same ancestral sequence. Orthologs are corresponding genes in different lineages and are a result of speciation, whereas paralogs result from a gene duplication.
Orthologous genes are genes in different species that originated from a common ancestral gene through speciation events. These genes typically retain the same function across species, making them essential for studying evolutionary relationships and functional similarities among organisms.
Definition. Orthologous genes are genes in different species that evolved from a common ancestral gene through speciation events. These genes typically retain the same function across different organisms, making them crucial for studying evolutionary relationships and functional genomics.
