Sentence examples for maintained by recurrent from inspiring English sources
This phenomenon is known as colour polymorphism when the main phenotypic difference is the colour of the plumage, pelage or skin, and has traditionally been defined as the existence of distinct, genetically determined colour morphs within a single interbreeding population, in such a proportion that the rarest form cannot be solely maintained by recurrent mutation [1].
Indeed, HAAF has been shown to be maintained by recurrent iatrogenic hypoglycemia (33, 34).
These data indicate that the high sequence similarity and close relationship between mtrA-1 and mtrA-2 paralogs are maintained by recurrent gene conversion events, favoring the concerted evolution model (Scenario A, Figure 4A).
The variation of genotypes among individuals, inherited from parents but still present in the DNA of each cell in the body, is the classic definition of a genetic polymorphism and we propose going back to this original definition: a polymorphism occurs in a population when the observed variation from individual to individual is not maintained by recurrent mutation.
Wang et al. have shown that spatial working memory is maintained by spatially tuned recurrent excitation within networks of prefrontal cortical neurons [ 68].
Ford (1975 p. 109; and see also Ford 1940) defines genetic polymorphism as "…the occurrence together in the same locality of two or more discontinuous forms of a species in such proportions that the rarest of them cannot be maintained merely by recurrent mutation".
Tension Zones are maintained by hybrid unfitness (i.e. endogenous selection) and recurrent immigration from the parental regions [ 1, 75, 76].
These will be maintained by a clinical standardization monitor who conducts repeated instruction at each site and by recurrent local training and testing.
However, in normal adult muscle this population will remain constant even after recurrent cycles of necrosis-regeneration, which clearly suggests that the satellite cell pool is maintained by self-renewal.
It is maintained by caucus staff.
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