Sentence examples similar to selection has been changed from inspiring English sources
The most important message of these experiments is that the resistance of a population to selection is not present from the very beginning of an experiment but appears only after the frequency of alleles in the population has been changed by the selection.
Nothing has been changed.
It may be worthwhile after the practical to discuss some of the real-world examples of (rapid) adaptation by natural selection, which have been demonstrated in some cases where selection pressures have been changed in drastic but well-documented ways.
This pre-selection explains the high completeness for this variable, but also the high proportion of incorrect entries (24%) when the pre-selection should have been changed.
The second group comprises genes that commonly exist, even in molluscan eyes, but whose functions have been changed by positive selection in relation to camera eye development in cephalopods.
The disclaimer also notes that while natural selection has been observed to influence small changes in populations it is only "assumed" to produce large changes, "…even though this has not been directly observed".
Within modern agriculture, genetic selection has been able to maximize directed change by minimizing environmental pressures.
Fishing-induced selection has been identified as having the capacity to change various life-history traits as well as morphological, behavioral, and physiological traits (reviewed by Policansky 1993; Law 2000; Heino and Godø 2002; Dieckmann and Heino 2007; Hutchings and Fraser 2007; Kuparinen and Merilä 2007; Jørgensen et al. 2007; Uusi-Heikkilä et al. 2008; Hard et al. 2008).
These fitness changes can be observed in populations where selection has been relaxed (mutation-accumulation experiments) or in large populations under selection (adapting populations).
Whilst the formation change has largely been hailed as a success, Marino's team selection has been called into question.
