| 词汇 | mutation |
| 释义 | mutation noun uk /mjuːˈteɪ.ʃən/ us /mjuːˈteɪ.ʃən/ [ U ] the way in which genes change and produce permanent differences: （基因的）变异，突变 It is well known that radiation can cause mutation.众所周知，辐射可能造成基因突变。 [ C ] a permanent change in an organism, or the changed organism itself: （生物体的）变异，突变;突变生物体 Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使发生了某些突变的基因存活下来，另一些则消亡了。 These plants carry the mutation for red flowers.这些植物携带红花变种。 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 mutation | American Dictionarymutation noun[ C/U ] us/mjuˈteɪ·ʃən/ biology the change that happens in an organism’s genes which produces differences that are passed to new organisms by reproduction, or the process of this change Examples of mutationmutation Of course, it is possible that more complex patterns of gene regulation in eukaryotes might predispose them to synergistic effects between mutations. Mutations that lead out of the valley onto a new fitness peak are, of course, beneficial mutations. In the present study we made additional mutations. The molecular characterization of the mutations suggests a low frequency of false positives. Heritable changes- called" mutations" - occur if the genetic message is changed. Any divergence in genotypes or phenotypes is due to the recent generation and fixation of new mutations in these two separately maintained lines. All data related to mutations are presented with reference to these sequences. Two control samples were included in each experiment to normalize for mutations induced by transfection or superinfection processes. Importantly, mutations in individual coiled-coil proteins lead to specific developmental or even behavioral phenotypes. In a coding region, we intuitively expect to see mutations that make conservative amino acid substitutions; in particular, we expect an abundance of synonymous mutations. Such replacement mutations are determined to be positively selected. In more detailed analyses, several groups tested individual codons for replacement mutations that are, as an aggregate, overabundant. Causative mutations were not found in two of the eight patients. We did not detect any mutations or polymorphisms in any of the patients or controls. No mutations or polymorphisms were detected, but our primer pairs and reaction conditions may prove useful for future mutational analyses. See all examples of mutation 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 withmutationmutationThese are words often used in combination with mutation. Click on a collocation to see more examples of it. deleterious mutation We were therefore under the genomic deleterious mutation framework with no constraint on the total number of mutable loci in the genome. genetic mutation One solution has been to assume that syntax arrived all at once, perhaps enabled by a geneticmutation. germline mutation The majority of recurrences associated with a germline mutation occurred in a different quadrant of the breast and had distinct pathological features. 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 mutation |
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