The V lineage shows evidence of recent positive selection.

The CD155 gene appears to have been subject to positive selection.

B46, or a closely linked allele may have been under positive selection in rice farmers of Asia.

Selective sweeps occur when an allele becomes more common in a population as a result of positive selection.

Other genes of the innate immune system also seem to be subject to powerful positive selection.

The protocadherin-beta gene cluster on chromosome 5 also shows evidence of possible positive selection.

And rare variants may end up being common in a population due to positive selection for a favorable mutation.

The euphemism 'positive selection policies' has been devised to soften censorship's image.

Would we expect the same strength of positive selection on a generalized pathogen control system?

Accelerated evolution in bats is likely due to positive selection on echolocation.