| 词汇 | allele |
| 释义 | allele noun[ C ] biology specializeduk /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 eye colour等位基因，对偶基因（位于一对同源染色体的相同位置上控制某一性状的不同形态的基因） Genetics accession number adenine anaphase autosomal autosomally dizygotic genetically genetically engineered geneticist genic genomic genomics monozygotic mutate non-Darwinian non-familial non-genetic non-mutant nondominant sex-linked allele | American Dictionaryallele noun[ C ] us/əˈlil/ biology one of two or more genes (= part of a cell that controls characteristics) that is found in the same position in a chromosome (= cell structure), and so produces a particular characteristic such as eye color Examples of alleleallele For this analysis, rare alleles were combined, thereby reducing a total of 124 alleles over the six microsatellites down to 49 allele classes. It describes the dynamics of a wild-type allele and its variants, derived by mutation, for an infinitely large population. In microsatellites, repeat sequences of different lengths at a given locus are referred to as alleles and co-dominance is observed. In the four remaining polymorphisms, the rare allele is at most present in three sequences out of 20. Similarly, we did not perform sub-analyses of the e2 allele due to its relatively small frequency across age groups in the population. The same set of simulations also yielded allele numbers and diversity (expected heterozygosity) values at the neutral locus under the infinite alleles model. This is an artefact due to the particular combination of allele frequency distribution and error model adopted in the simulations. The age of an allele is the time since it arose by mutation. Similarly, increasing marker information for each sample (number of independent marker alleles, sample size) also results in better estimations (data not shown). Mutation-selection balance can be efficient in explaining the process of gene substitution only if one of these deleterious alleles acquires a relatively high selective advantage. Here we study the effect of population size on the inbreeding depression caused by mildly deleterious alleles. We found that the model has low statistical power when inbreeding depression is caused by the build-up of mildly deleterious alleles. Fixation for a haplotype corresponds to fixation of a deleterious allele at a particular locus. In fact, the preferential transmission of the 7-repeat allele from parents to disorganized children was not significant. It is customary to concentrate only on the transmitted marker 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. Collocations withallelealleleThese are words often used in combination with allele. Click on a collocation to see more examples of it. allele frequency A new method for estimating the effective population size from allelefrequency changes. deleterious allele Fixation for a haplotype corresponds to fixation of a deleterious allele at a particular locus. dominant allele A parent with such a single dose of the dominant allele is called the simplex parent. 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. See all collocations with allele |
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