anagenesis

(redirected from Anagetic)
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an·a·gen·e·sis

 (ăn′ə-jĕn′ĭ-sĭs)
n.
An evolutionary process that involves change from an ancestor species to a descendant species without the branching or splitting off of new taxa.

anagenesis

(ˌænəˈdʒɛnɪsɪs)
n
the progressive evolutionary changes that take place over time in a single genetic lineage