| |
quasispecies
(quah″ze-spe´sēz)
one of a population of closely related genotypes coexisting as a result of mutations of the original genotype, with selective
pressures causing the genotypes to assume a distribution in the center of which is the most frequent, and often fittest, genotype.
The heterogeneous mixture of closely related viruses within an individual host are quasispecies.

Copyright 2007. An Elsevier publication. All rights reserved.
Click here for important legal information about Dorland's Medical Dictionary.
|