quasispecies

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quasispecies

 [quah″zĭ-spe´sēz]
a swarm of virus with similar genetic structure sharing a host with other quasispecies of different genetic makeup; usually all quasispecies in one host are descended from a single ancestor strain.

quasispecies

[quah′z-spe′sēz]
a swarm of viruses with similar genetic structure sharing a host with other quasispecies of different genetic makeup. Usually all quasispecies in one host are descended from a single ancestor strain.