| 释义 |
Definition of orthogenesis in English: orthogenesisnoun ˌɔːθə(ʊ)ˈdʒɛnɪsɪsˌɔrθoʊˈdʒɛnəsəs mass nounBiology historical Evolution in which variations follow a particular direction and are not merely sporadic and fortuitous. Example sentencesExamples - Weidenreich tried to explain the seeming contradiction between isolated regional development and the unity of the human species by advancing the notion of orthogenesis, or directed evolution.
- A once-popular hypothesized evolutionary mechanism was orthogenesis, in which change in organisms was due not to natural selection, but to internal directional trends within a lineage.
- Mutation bias is not enough to produce orthogenesis, however.
- The data is inconsistent with orthogenesis, and somehow thinks that because he can draw a line from an extant animal to its many-times-great grandparents, he has supported directed evolution.
- In contrast, other scientists imagine channeling, aka orthogenesis, to exist not only for individuals but also for species and for evolution: while there are lots of possibilities, the domain is restricted.
Derivatives noun Biology historical And a person who believes in evolution might be a devout Lamarckian or a pious Orthogenesist.
adjective ˌɔːθə(ʊ)dʒəˈnɛtɪkˌɔrθoʊdʒəˈnɛdɪk Biology historical His major work focused on his orthogenetic developmental theory. Example sentencesExamples - Basically, Newell rejected the common view according to which allometry implies nonadaptive, or orthogenetic evolution.
- The fuel in his orthogenetic engine is ‘mutation bias’. Mutation produces novel phenotypes, but it does not produce all novel phenotypes in equal frequency in a given population.
- Most American biologists had a looser expectation - that some progressive, or ‘orthogenetic’, force guided life in certain directions, most notably toward humanity and Anglo-American civilization.
- Evolutionary discussions after the publication of the six editions of the Origin and the later works took many shapes, and raised several different lines of inquiry including neo-Lamarckianism and orthogenetic theory.
adverb ˌɔːθə(ʊ)dʒɪˈnɛtɪk(ə)li Biology historical These three groups evolved orthogenetically and remained very similar.
Definition of orthogenesis in US English: orthogenesisnounˌɔrθoʊˈdʒɛnəsəsˌôrTHōˈjenəsəs Biology historical A theory that variations in evolution follow a particular direction and are not merely sporadic and fortuitous. Example sentencesExamples - Weidenreich tried to explain the seeming contradiction between isolated regional development and the unity of the human species by advancing the notion of orthogenesis, or directed evolution.
- Mutation bias is not enough to produce orthogenesis, however.
- In contrast, other scientists imagine channeling, aka orthogenesis, to exist not only for individuals but also for species and for evolution: while there are lots of possibilities, the domain is restricted.
- A once-popular hypothesized evolutionary mechanism was orthogenesis, in which change in organisms was due not to natural selection, but to internal directional trends within a lineage.
- The data is inconsistent with orthogenesis, and somehow thinks that because he can draw a line from an extant animal to its many-times-great grandparents, he has supported directed evolution.
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