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Lineage Sign Video

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Definition

An unbranched series of ancestral-descendant populations extending through evolutionary time. Lineages related to others through branching of ancestral lineages form a phylogenetic tree. In molecular evolution, a series of ancestral-descendant DNA molecules traced through an organismal genealogy or phylogeny.

Source: Hickman, C.P., et al. 2011. Integrated Principles of Zoology. Fifteenth Edition. McGraw-Hill Higher Education.
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