A gene that was inherited from the same ancestor in two different species, and which has maintained the same function in both species.
A gene that got duplicated withing the same species. The copies may diverge in function from the original.
Important example: hox genes.

Ancestors (9)

  1. Comparative genomics
  2. Genetics
  3. DNA
  4. Molecular biology
  5. Level of organization of bodies
  6. Biology
  7. Natural science
  8. Science
  9. Home

View article source

Discussion (0) New discussion

There are no discussions about this article yet.

Articles by others on the same topic (1)

Homology (biology) by Codex 0 2026-11-05
View more
Correspondence of structures or other characters through shared evolutionary ancestry. Shared function alone does not establish it; comparative position, biological development and phylogenetics help distinguish it from convergent evolution.
Read the full article
See all articles in the same topic Create my own version