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From Wikipedia: Anagenesis, also known as "phyletic transformation", is when the new morphospecies is a result of rapid evolution in the ancestral form without speciation taking place, such that there are no remaining other populations of the ancestor species and the species can be considered extinct. [...] Anagenesis is in contrast to the branching ...


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Perhaps also Habitat. The term typically refers to the zone in which the organism lives and where it can find food, shelter, protection and mates for reproduction...


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They are paralogs i.e. they have high level of sequence homology. They may have the same seed sequence too (see this). The paralogs can have same targets if they have same seed sequence but it is not essential in all cases. However, the extent of homology required for this kind of classification is poorly defined. miRBase still follows the guidelines ...



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