It is tempting to speculate that the important antigenic potential of pilins (Nassif et al. 1993; Miller et al. 2014) might frequently favor selection for comP loss in host-associated bacteria.
As the HEPN proteins might be encoded by mobile elements, which tend to disperse under stress conditions [ 151], they might favor group selection in mixed colonies or biofilms as well.
Alternatively, protein interactions mediated either by adaptor proteins or accessory domains covalently linked to the phosphatase domain, might favor physiological substrates selection by increasing their relative local concentration.
The exact cause of the selection of the codon bias is unclear, the current accepted mutation-selection-drift balance model proposes that both selection and mutational pressure are involved in the phenomenon of codon bias (reviewed in [1]): selection might favor the major codons over the rare codons, whereas mutational pressure and genetic drift allow the minor codons to persist.
Yet natural selection might favor genes for these dead-end creatures.
She then explains why natural selection might favor such behavior.
In females, however, treatment with elevated testosterone strongly decreased overall reproductive success, suggesting that, while selection might favor increased testosterone in males, the negative consequences for females may be constraining the evolution of this trait, resulting in a case of sexual conflict.
"So a [gene variant] that conferred risk to asthma confers protection against [worm infection]." The researchers posit that natural selection might favor mutations that protect against worm infection and that those same mutations might inadvertently increase the risk of other diseases, such as asthma.
We hypothesized that natural selection might favor morphological divergence of multiple features (body units).
Selection might favor the evolution of dominance among alleles, making heterozygotes more similar to one of the homozygotes [36] [39].
