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What does homologous mean?

Looking for the meaning or definition of the word homologous? Here's what it means.

Adjective
  1. (biology) Corresponding to a similar structure in another life form with a common evolutionary origin.
  2. (chemistry) Belonging to a series of aliphatic organic compounds that differ only by the addition of a CH2 group.
  3. (genetics) Having the same morphology as another chromosome.
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At the beginning of meiosis, each primordial sex cell has paired homologous chromosomes, just like any other eukaryotic cell.
Their tympanum is not homologous with the tympanum of mammals and saurians because it developed independently in all three groups.
Vestigial structures are often homologous to structures that function normally in other species.
Can homologous proteins sharing the same fold differ significantly in the area of densely packed domains?
The same 10 homologous linkage groups were identified between loblolly pine and maritime pine.
A broken DNA end in a repetitive region of one chromosome can accidentally recombine with similar sequences on a non homologous chromosome.

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