Definition of quasispecies in English:

quasispecies

noun ˈkweɪzʌɪˌspiːsɪzˈkwɑːziˌspiːʃɪzˈkweɪzʌɪˌspiːʃɪz

Biology

1A race or type of plant or animal which appears superficially to be a distinct species, or is named by some as though it were such, but is regarded (especially by later workers) as not warranting such status. Also in extended use. Now rare.
2Originally (in models of evolutionary selection): a group of similar but non-identical DNA or RNA molecules, with a distribution centred on a hypothetically ideal sequence, resulting from a balance between mutation and selection pressure. In later use also: a population of viruses with genomic sequences of this nature.

Origin

Mid 19th century; earliest use found in Hewett Watson (1804–1881), botanist and phrenologist. From quasi + species.

Definition of quasispecies in US English:

quasispecies

noun

Biology

1A race or type of plant or animal which appears superficially to be a distinct species, or is named by some as though it were such, but is regarded (especially by later workers) as not warranting such status. Also in extended use. Now rare.
2Originally (in models of evolutionary selection): a group of similar but non-identical DNA or RNA molecules, with a distribution centred on a hypothetically ideal sequence, resulting from a balance between mutation and selection pressure. In later use also: a population of viruses with genomic sequences of this nature.

Origin

Mid 19th century; earliest use found in Hewett Watson (1804–1881), botanist and phrenologist. From quasi + species.

词汇	quasispecies
释义	Definition of quasispecies in English: quasispecies noun ˈkweɪzʌɪˌspiːsɪzˈkwɑːziˌspiːʃɪzˈkweɪzʌɪˌspiːʃɪz Biology 1A race or type of plant or animal which appears superficially to be a distinct species, or is named by some as though it were such, but is regarded (especially by later workers) as not warranting such status. Also in extended use. Now rare. 2Originally (in models of evolutionary selection): a group of similar but non-identical DNA or RNA molecules, with a distribution centred on a hypothetically ideal sequence, resulting from a balance between mutation and selection pressure. In later use also: a population of viruses with genomic sequences of this nature. Origin Mid 19th century; earliest use found in Hewett Watson (1804–1881), botanist and phrenologist. From quasi + species. Definition of quasispecies in US English: quasispecies noun Biology 1A race or type of plant or animal which appears superficially to be a distinct species, or is named by some as though it were such, but is regarded (especially by later workers) as not warranting such status. Also in extended use. Now rare. 2Originally (in models of evolutionary selection): a group of similar but non-identical DNA or RNA molecules, with a distribution centred on a hypothetically ideal sequence, resulting from a balance between mutation and selection pressure. In later use also: a population of viruses with genomic sequences of this nature. Origin Mid 19th century; earliest use found in Hewett Watson (1804–1881), botanist and phrenologist. From quasi + species.
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