positive selection
collocation in Englishmeaningsofpositiveandselection
These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withselection.
positive
adjective
uk/ˈpɒz.ə.tɪv/us/ˈpɑː.zə.t̬ɪv/
full of hope and confidence, or giving cause for hope ...
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selection
noun
uk/sɪˈlek.ʃən/us/səˈlek.ʃən/
the act of choosing someone ...
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(Definition ofpositiveandselectionfrom theCambridge English Dictionary© Cambridge University Press)
Examplesofpositive selection
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
Previous studies that reported evidence forpositiveselectionshould be revisited, particularly for data derived from sources reasonably expected to have experienced recombination.
From theCambridge English Corpus
We present three speculative hypotheses in an attempt to explain why lysins are acted on bypositiveselection.
From theCambridge English Corpus
Furthermore, ifpositiveselectionwas detected in a region, it would not be possible to localize the signal to individual sites.
From theCambridge English Corpus
Consequently, exceeding these rates would be expected to yield a conservative test forpositiveselection.
From theCambridge English Corpus
But of course it doesn't; rather, adaptation (positiveselectionfor a function resulting in altered trait structure) does.
From theCambridge English Corpus
However, the identification of sites that might have experiencedpositiveselectionshould require them to be outside the false-positive distribution, not within it.
From theCambridge English Corpus
A method for detectingpositiveselectionat single amino acid sites.
From theCambridge English Corpus
The second checkpoint is 'positiveselection', which occurs after selection has signalled the cell to rearrange the chain genes.
From theCambridge English Corpus
Positiveselectionis mostly invoked to explain such a lineage-specific acceleration of substitution rates in comparison with close relatives.
From theCambridge English Corpus
Short branches of selffertilizing lineages could explain why we did not detectpositiveselectionin these lineages.
From theCambridge English Corpus
Positiveselectionon the heron's neural system to use the wing for shading involves adaptation.
From theCambridge English Corpus
Immune-mediatedpositiveselectiondrives human immunodeficiency virus type 1 molecular variation and predicts disease duration.
From theCambridge English Corpus
Selection may take several forms, and we are here concerned with purifying andpositiveselection.
From theCambridge English Corpus
The signature ofpositiveselectionat randomly chosen loci.
From theCambridge English Corpus
It is the analysis of the balance between constraints, constraints removal, andpositiveselectionthat leads to the understanding of evolutionary changes.
From theCambridge English Corpus
As we accumulate more clones, we will have the capacity to test evolutionary hypotheses, such aspositiveselectionand co-evolution of asterosap and its receptor.
From theCambridge English Corpus
Negative depletion (which excludes those cells that are definitely not stem cells) is another method, and is often used in combination withpositiveselection.
From theCambridge English Corpus
We also found thatpositiveselectioncould be more efficient in outcrossing than in self-fertilizing species, in agreement with the dead end theory.
From theCambridge English Corpus
The process therefore appears similar to thymocytepositiveselection.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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