Glossary of "Evolution (3rd ed.)" by Futuyma (2013)
- A DNA sequence that differs from homologous sequences at one or more base pair sites.
Glossary of "Life (9th ed.)" by Sadava et al. (2011)
- Linked nucleotide sequences that are usually inherited as a unit (as a "sentence" rather than as individual "words").
- Futuyma, D. J. 2013. Evolution, 3rd ed. -xviii + 656 + 14 + 37 + 2 + 36 pp. Sinauer Associates, Inc., Sunderland.
- Sadava, D., Hillis, D. M., Heller, H. C. & Berenbaum, M. R. 2011. Life: The Science of Biology, 9th ed. -xliv + 1266 pp. Sinauer Associates, Inc., Sunderland.