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PS rsal. ame s of all mon ften and ing ets. JA. 14.6.1 Mutations and genetic code The relationship between genes and DNA are best understood by mutation studies. Mutations and their effects are explained in another chapter. To know that the codon is a triplet and it is read in a continuous manner, here point mutations are explained. The point mutation is a change of single base pair in the gene. When a mutagen (a chemical that causes mutations) is used, it induces mutations by causing the addition or deletion of a base pair in the DNA. 89

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