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- Dictionarymutant/ˈmjuːt(ə)nt/
adjective
- 1. resulting from or showing the effect of mutation: "a mutant gene"
noun
- 1. a mutant form: "frequently only a small percentage of the offspring of mutants resemble their parents"
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17 hours ago · Conditional mutation is a mutation that has wild-type (or less severe) phenotype under certain "permissive" environmental conditions and a mutant phenotype under certain "restrictive" conditions. For example, a temperature-sensitive mutation can cause cell death at high temperature (restrictive condition), but might have no deleterious consequences at a lower temperature (permissive condition ...
3 days ago · Definition. A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection. Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.
2 days ago · Mutagen. The international pictogram for chemicals that are sensitising, mutagenic, carcinogenic or toxic to reproduction. In genetics, a mutagen is a physical or chemical agent that permanently changes genetic material, usually DNA, in an organism and thus increases the frequency of mutations above the natural background level.
6 days ago · Definition. A mutagen is a chemical or physical agent capable of inducing changes in DNA called mutations. Examples of mutagens include tobacco products, radioactive substances, x-rays, ultraviolet radiation and a wide variety of chemicals. Exposure to a mutagen can produce DNA mutations that cause or contribute to certain diseases.
Jul 27, 2024 · The meaning of GENETIC MUTATION is a permanent alteration in the nucleotide sequence of one or more genes or in the number or structure of one or more chromosomes.
2 days ago · Analyzing the phenotypes of mutant genes can also aid in determining gene function. [31] Most genetic screens have used microorganisms, in which genes can be easily deleted. For instance, nearly all genes have been deleted in E. coli [ 32 ] and many other bacteria , but also in several eukaryotic model organisms such as baker's yeast [ 33 ] and fission yeast . [ 34 ]
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Jul 19, 2024 · allele. codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. An example of codominance is seen in the MN blood group system of humans.
