1 / 9

12-4 Mutations

12-4 Mutations. Pg. 307. A. Kinds of Mutations. 1. Mutations are changes, or mistakes, made in the genetic material. 2. Types of Mutations: Point Mutations Frameshift Mutations Silent Mutations. A. Kinds of Mutations. 3. Point Mutations involve a change in one or a few nucleotides.

rhonda
Télécharger la présentation

12-4 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. 12-4 Mutations Pg. 307

  2. A. Kinds of Mutations • 1. Mutations are changes, or mistakes, made in the genetic material. • 2. Types of Mutations: • Point Mutations • Frameshift Mutations • Silent Mutations

  3. A. Kinds of Mutations • 3. Point Mutations involve a change in one or a few nucleotides.

  4. A. Kinds of Mutations • 4. Frameshift Mutations shift the “reading” frame of genetic code by inserting or deleting a nucleotide.

  5. Label: Point or Frameshift • 1. AAG-GGG  AUG-GGG • Lysine-Glycine Methionine- Glycine • 2. UUC  AUUC • Phenylalanine  Isoleucine • 3. AGC-CCC  AGC-CGC • 4. UUAG  UAG

  6. A. Kinds of Mutations • 5. Silent Mutations have no observable effect on an organism.

  7. B. Significance of Mutations • 1. Negative • Cancers • Genetic Diseases • Ex: Sickle Cell Disease and Cystic Fibrosis

  8. B. Significance of Mutations • 2. Positive • Resistance to Diseases • Physical Advantages • Example: Plant and animal breeders

  9. Word Bank: Mutations, Genetic Diseases, Frameshift, Positive, Effects, Types, Point

More Related