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point mutation

point mutation (gene mutation) A change in the nucleotide sequence of the DNA within a gene; a gene in which such a change has occurred is known as a mutant gene or allele (see mutation). The DNA sequence can be altered in several ways; for example by insertion, substitution, deletion, and inversion. Point mutations result in a misreading of the genetic code during the translation phase of protein synthesis and usually change the order of amino acids making up a protein, which may or may not affect the function of that protein. See also intergenic suppressor; missense mutation. Compare chromosome mutation; single nucleotide polymorphism.

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"point mutation." A Dictionary of Biology. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"point mutation." A Dictionary of Biology. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation-2

"point mutation." A Dictionary of Biology. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation-2

point mutation

point mutation A mutation that can be mapped to one specific locus: it is caused by the substitution of one nucleotide for another. A point mutation may also be caused by deletion and inversion.

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"point mutation." A Dictionary of Plant Sciences. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"point mutation." A Dictionary of Plant Sciences. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation-0

"point mutation." A Dictionary of Plant Sciences. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation-0

point mutation

point mutation A mutation that can be mapped to one specific locus. It is caused by the substitution of one nucleotide for another.

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"point mutation." A Dictionary of Zoology. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"point mutation." A Dictionary of Zoology. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation-1

"point mutation." A Dictionary of Zoology. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation-1

point mutation

point mutation A mutation that occurs at only one nucleotide site. The term is often used synonymously with substitution.

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"point mutation." A Dictionary of Ecology. . Encyclopedia.com. 13 Dec. 2017 <http://www.encyclopedia.com>.

"point mutation." A Dictionary of Ecology. . Encyclopedia.com. (December 13, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation

"point mutation." A Dictionary of Ecology. . Retrieved December 13, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/point-mutation