adaptive mutation


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adaptive mutation

useful mutations that seem to occur more frequently when needed.
References in periodicals archive ?
We did not detect the E1-A226V adaptive mutation associated with large outbreaks in Asia (5) in the strains we analyzed.
Rosenberg, "Evolving Responsively: Adaptive Mutation," Nature Reviews Genetics 2, no.
Bell takes these theories for granted, along with natural selection, adaptive mutation and other Darwinist principles.
The papers following explore aspects of these issues in more detail, with studies relevant to cancer, parasites, predator evolution, maintenance of genetic diversity, and adaptive mutation susceptibility.
It improves the population by three main operators: the proportional clonal operator, the adaptive mutation operator and the selection operator.
However, the update mechanism in the AMBPSO is implemented exclusively in Boolean form using an effectively adaptive mutation process.
The second way is a more gradual process of adaptive mutation, whereby the capability of the virus to bind to human cells increases during subsequent infections of humans.
They cover, among other topics: radical enzymes in anaerobes, the structural and functional role of RNA in icosahedral virus assembly, virulence genes in the dimorphic fungi, the adaptive mutation controversy, and multilocus sequence typing of bacteria.
The concept of adaptive mutation leans heavily on the Lamarckian view.
Many scientists contend that dramatically increased rates of mutation are almost always bad for bacteria, while others believe the bacteria depend on adaptive mutation to outlast the trials of harsh environments.
In a further extension of the accordion analogy, in addition to observing rapid gene expansion in the E3L-deficient strain of vaccinia, the researchers also observed that the virus contracted after acquiring an adaptive mutation, swapping a beneficial mutation for a smaller genomic footprint.
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