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Dictionary » M » Mutation MutationDefinition noun, plural: mutations (general) A change in or the process of changing, e.g. nature, form or quality. (genetics) (1) A permanent, heritable change in the nucleotide sequence in a gene or a chromosome; the process in which such a change occurs in a gene or in a chromosome. (2) A mutant, or an individual exhibiting such a change.
In genetics, mutation may be small scale (affecting the nucleotide sequence of a gene) or large scale (involving a change in the chromosome). It may arise from faulty deletions, insertions, or exchanges of nucleotides in the genetic material, as caused by exposure to ultraviolet or ionizing radiation, chemical mutagens, viruses, etc. Such a change may result in the creation of a new character or trait.
Related forms: mutant (noun), mutate (verb).
User Contributions / Comments:
(~Dlee7283) Mutations introduce new traits in a population,change allele frequencies and include changes in the DNA sequences. ![]()
Please contribute to this project, if you have more information about this term feel free to edit this page ![]()
Results from our forummutation-selection balance... and Bamshad: Consider, for example, a dominant disease that results in death before the person can reproduce. This is termed a genetic lethal mutation because, even though the individual might survive for some time, he or she contributes no genes to the next generation. Each time mutation ...
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mutations and dependenciesThe literature for mutation in germ line cells are on the internet. Anyway if someones interested he has a talk on youtube 'Numerical simulation predicts human extinction'. Laterz.
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Re: mutations and dependencies... as to why genome sequencing results are consistent with inferences based on the fossil record? Now I will quote one of the linked articles. bad mutations are physically linked to good mutations,2 so that they cannot be separated in inheritance (to get rid of the bad and keep the good). The result ...
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Re: mutations and dependencies the lack of evidence for something=evidence for it Nobody could say that, since it's nonsense. One mutation could (potentially) kill you, but dozens of others do not. Moreover, our genome is optimized after milions of years of evolution. How much more would you like to optimize ...
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mutations and dependencies... appreciate some commentary. I recently learned about epistasis and genetic heterogeneity . Apparently, you can get similar phenotypic results from mutations in different genes that are part of the same biological pathway. To me, this seems similar to computer programs that have depencies. If a ...
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