1 / 8

DNA Mutations

DNA Mutations. Mutations are changes in DNA. They can be good, bad or indifferent Most mutations are indifferent because they happen on introns . Very few mutations are good Mutations can occur on somatic cells or on gamates. Types of Mutation. Point Mutation.

dareh
Télécharger la présentation

DNA Mutations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. DNA Mutations

  2. Mutations are changes in DNA • They can be good, bad or indifferent • Most mutations are indifferent because they happen on introns. • Very few mutations are good • Mutations can occur on somatic cells or on gamates

  3. Types of Mutation Point Mutation One base of a gene is changed Original: A C T /A G C New: A G T /A G C

  4. Types of Mutation Frame Shift Mutation One or more bases are inserted or deleted which causes a “shift” in how the codons are read Original: ACT/AGC New: ACT/TAG/C

  5. Types of Mutation Deletion Results in missing DNA • can cause a frameshift mutation Original: A C T/ G T C New: T G T /C

  6. Types of Mutation Insertion Addition of extra DNA • can also cause frameshift mutations Original: A C T /G T C New: A C T /A T T/G T C

  7. Types of Mutation Inversion An entire section of DNA is reversed Original: A C T G T C New: A T G TC C

  8. Types of Mutation Translocation A section of DNA is moved to a different gene or chromosome

More Related