Sentence examples for frequent fixation from inspiring English sources

More frequent fixation of allelic variants by positive selection could be balanced by a lower rate of fixation of slightly deleterious alleles on the X chromosome.

This level of selection is an average, and it may arise from frequent fixation of weakly adaptive mutations or from rare mutations of large adaptive impact.

Similar proportions of gene gains are inferred to result from duplication and acquisition by gene transfer across the genus, although duplication is more frequent among recent gains (singleton genes), consistent with the hypothesis that although transient duplication events may be relatively frequent, fixation of exogenous genetic is more probable than fixation of duplicated material.

In analyses of sequence data for 40 genes, lineage II strains were significantly more likely to be identified as recipients of DNA fragments by horizontal gene transfer, indicating either more frequent lateral gene transfer or more frequent fixation of recombinant fragments.

Experts had more frequent fixations on relevant areas but for shorter durations.

Conflict trials resulted more complex and time-consuming than no conflicts, requiring more frequent fixations and saccades.

This suggests that although both classes of sites experience frequent adaptive fixation, non-domain codons may experience more adaptive evolution than domain codons.

In contrast to this, when beneficial mutations are frequent, their fixation usually does not take place before one or more secondary beneficial mutations are generated.

We next examined the possibility that frequent CpG fixation and BGC contribute to the maintenance of CpG-rich sequence in sperm methylated CGIs.

Similarly, more frequent operative fixation has been reported from the USA and Finland (Fanuele et al. 2009, Mattila et al. 2011).

It is known that events such as germline hypomethylation, CpG selection, biased gene conversion (BGC), and frequent CpG fixation can contribute to the maintenance of CpG-rich sequences in methylated CGIs in germline or non-germline cells.