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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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A broken DNA end in a repetitive region of one chromosome can accidentally recombine with similar sequences on a non homologous chromosome.
Those similar genes from the mother and father will be located at the same spot on each homologous chromosome.
Thus, poriferan spicules and chancelloriid sclerites do not appear homologous.
The same 10 homologous linkage groups were identified between loblolly pine and maritime pine.
This complex contains eight different homologous subunits, alpha, beta, gamma, delta, epsilon, zeta, eta, and theta.
Different from bivalent polyploids, multivalent polyploids pair their chromosomes among more than two homologous copies at meiosis.

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