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A successful genetic rescue occurs when the addition of new genes effectively introduces genetic diversity that leads to increased population size and growth rate, as well as a greater population fitness. [2] An unsuccessful genetic rescue may occur if the addition of new genes causes outbreeding depression, which decreases their population ...
Genopolitics is the study of the genetic basis of political behavior and attitudes. It combines behavior genetics, psychology, and political science and it is closely related to the emerging fields of neuropolitics (the study of the neural basis of political attitudes and behavior) and political physiology (the study of biophysical correlates of political attitudes and behavior).
Genetic pollution is a term for uncontrolled [1] [2] gene flow into wild populations. It is defined as "the dispersal of contaminated altered genes from genetically engineered organisms to natural organisms, esp. by cross-pollination", [ 3 ] but has come to be used in some broader ways.
This circumstance is more likely to happen and occurs more quickly with selection than genetic drift. [1] For the third mechanism, examples include poison dart frogs, anole lizards, and cichlid fish. Selection over genetic drift seems to be the dominant mechanism for outbreeding depression. [1] Ligers are also an example of outbreeding depression.
Many examples of genetic factors of social behavior have been derived from a bottom-up method of altering a gene and observing the change it produces in an organism. Sociogenomics is an integrated field that accounts for the complete cellular genetic complement of an organism from a top-down approach, accounting for all biotic influences that ...
Individual genetic advantage fails to explain certain social behaviors as a result of gene-centred selection. E.O. Wilson argued that evolution may also act upon groups. [14] The mechanisms responsible for group selection employ paradigms and population statistics borrowed from evolutionary game theory. Altruism is defined as "a concern for the ...
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Population bottleneck followed by recovery or extinction. A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts; or human activities such as genocide, speciocide, widespread violence or intentional culling.