null allele
collocation in Englishmeaningsofnullandallele
These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withallele.
null
adjective
uk/nʌl/us/nʌl/
having no ...
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allele
noun[C]
uk/əˈliːl/us/əˈliːl/
a gene that is found in one of two or more different forms in the same position in a chromosome, and so produces a particular characteristic that can be different for different people, such as ...
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(Definition ofnullandallelefrom theCambridge English Dictionary© Cambridge University Press)
Examplesofnull allele
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.
In this case the data were analysed as a three-allele system (two scoreable alleles and a non-scoreablenullallele).
From theCambridge English Corpus
However, in many applications, anullalleleis not the most physiologically relevant mutant form of the gene.
From theCambridge English Corpus
Some of these apparent homozygotes could be heterozygotes with anullallele.
From theCambridge English Corpus
First, the occurrence of anullalleleat an enzymatic locus will lead heterozygotes between a functional and thenullalleleto be scored as homozygotes.
From theCambridge English Corpus
This may be useful when working with a specific set of data for which the choice of markers is limited, with evidence of a singlenullallele.
From theCambridge English Corpus
Another possible explanation is that there is onenullalleleat each of the loci used and this is not accounted for in the pseudo-likelihood calculation.
From theCambridge English Corpus
One allele is a non-functionalnullallele, while the other encodes for a partially active enzyme.
From
Wikipedia
At the phenotypic level, anullalleleis indistinguishable from a deletion of the entire locus.
From
Wikipedia
If a mutation occurs in the annealing site, then the marker can no longer be used and the allele is turned into anullallele.
From
Wikipedia
For allozymes, null alleles can be generated by mutations or deletions within a gene and thus do not produce any detectable protein.
From theCambridge English Corpus
However, the presence of null alleles is less likely here, because null phenotypes were not detected.
From theCambridge English Corpus
Defects predicted to create null alleles caused substantial abnormalities in both the limbs and heart.
From theCambridge English Corpus
The obvious cause of an apparent excess of homozygotes is the presence of one or more null alleles.
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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