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Sriharsha Kota 4-7 per. Genetic Variation Genetic variation has many important parts to it, a big portion being mutation. A mutation is a change in the nucleotide sequence of DNA dealing with its genes and alleles. A point mutation is a change in a single base in a nucleotide sequence. That being said, the origin of how a mutation forms is mutagenesis. There are three types of point mutations: substitution, frame shift(insertion and deletion), and an editing error. Substitution is the replacement of one nucleotide and its partner with another pair of nucleotides. A frame shift mutation occurs whenever the number of nucleotides inserted or deleted is not a multiple of three. While dealing with mutations, several characteristics must also be included. These are randomness, non-directionality, change in phenotypic traits, and gametic change. These all contribute to how a mutation may be classified going from physical descriptions to the very gametes themselves. An...

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