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Mutations

Mutations. What are they and how does it affect us?. Mutations. Gene mutations result from changes in a single gene. Chromosomal mutations involve changes whole chromosomes. Gene Mutation.

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Mutations

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  1. Mutations What are they and how does it affect us?

  2. Mutations • Gene mutations result from changes in a single gene. Chromosomal mutations involve changes whole chromosomes.

  3. Gene Mutation • Point Mutation – Affect one nucleotide thus occurring at a single point on the gene. Usually one nucleotide is substituted for another nucleotide. • Frameshift Mutation – Inserting an extra nucleotide or deleting a nucleotide causes the entire code to “shift”.

  4. Gene Mutation

  5. Chromosomal Mutations • Deletion – Part of a chromosome is deleted • Duplication – part of a chromosome is duplicated • Inversion – chromosome twists and inverts the code. • Translocation – Genetic information is traded between nonhomologous chromosomes.

  6. Chromosomal Mutations

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