Sentences with phrase «maintained by natural selection»
The functional portion of the genome is described as that which has a selected - effect function, that is, a function that arose through and is maintained by natural selection.
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Swift maintains that evolution occurs, but is limited; that many cases of evolution of species have been observed, but these can be explained by gene segregation guided by natural selection.
The new study «adds fuel to an active debate» about the role of accessory genes, says Alan McNally, a microbiologist at the University of Birmingham in England — whether or not the collections of genetic add - ons that bacteria maintain are shaped by natural selection, the process that fuels evolution.
The findings thus support the idea that SSB may be prevalent in one sex because the genes regulating the behaviour are preserved by natural selection through their benefits in the opposite sex, pointing to a general mechanism maintaining multiple forms of SSB across a wide variety of animals.
The theory of memetics shows how creating a mode of natural selection for memes in the sea of uncontrolled digital information via Arsenal Gear would allow the Patriots to shape public discourse by easily replacing radical or opposing ideas with those that the group finds more convenient for maintaining their power.