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History
Peter Keightley
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Peter D. Keightley FRS is Professor of Evolutionary Genetics at the Institute of Evolutionary Biology in School of Biological Sciences at the University of Edinburgh.
Peter Keightley at the Royal Society admissions day in London, July 2014
Peter Keightley at the Royal Society admissions day in London, July 2014
Mutation
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In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mitosis, or meiosis or other types of damage to DNA, which then may undergo error-prone repair, cause an error during other forms of repair, or cause an error during replication. Mutations may also result from insertion or deletion of segments of DNA due to mobile genetic elements.
A red tulip exhibiting a partially yellow petal due to a mutation in its genes
A red tulip exhibiting a partially yellow petal due to a mutation in its genes
Mutation with double bloom in the Langheck Nature Reserve near Nittel, Germany
Mutation with double bloom in the Langheck Nature Reserve near Nittel, Germany
A mutation has caused this moss rose plant to produce flowers of different colors. This is a somatic mutation that may also be passed on in the germli
A mutation has caused this moss rose plant to produce flowers of different colors. This is a somatic mutation that may also be passed on in the germline.