12-4 Mutations Pg. 307. A. Kinds of Mutations 1. Mutations are changes, or mistakes, made in the...

9
12-4 Mutations Pg. 307

Transcript of 12-4 Mutations Pg. 307. A. Kinds of Mutations 1. Mutations are changes, or mistakes, made in the...

Page 1: 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.

12-4 Mutations

Pg. 307

Page 2: 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.

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

Page 3: 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.

A. Kinds of Mutations

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

Page 4: 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.

A. Kinds of Mutations

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

Page 5: 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.

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

Page 6: 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.

A. Kinds of Mutations

• 5. Silent Mutations have no observable effect on an organism.

Page 7: 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.

B. Significance of Mutations

• 1. Negative• Cancers• Genetic Diseases– Ex: Sickle Cell Disease and Cystic Fibrosis

Page 8: 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.

B. Significance of Mutations

• 2. Positive• Resistance to Diseases• Physical Advantages– Example: Plant and animal breeders

Page 9: 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.

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

Example Example Example Example