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Mutations
Beginning of essay
A mutation is an alteration in the genetic material of a cell that is transmitted to the cell's offspring. may be spontaneous (the result of accidents in the replication of genetic material) or induced by external factors (e.g., electromagnetic radiation and certain chemicals).
take place in the ....
Middle of essay
....n might still specify the same amino acid. Furthermore, even if a mutation causes a wrong amino acid to be inserted into a protein, the change might be harmless. Most proteins consist of scores of amino acids; a change in one of these may have little or no effect on the biological properties of the protein. Also, almost all higher organisms have two sets of genes--one inherited from each parent. In such organisms, a mutated gene may be recessive and have its effect canceled by a dominant gene.
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| Number of words: 733 |
Approximate pages: 3 |
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