Goal 5
This presentation is the property of its rightful owner.
Sponsored Links
1 / 13

Goal 5: PowerPoint PPT Presentation


  • 117 Views
  • Uploaded on
  • Presentation posted in: General

Goal 5:. Gene Mutations. Mutation- permanent change in the DNA of an organism Germ Line mutations- occur in gametes Somatic mutations- occurs in body cells Lethal mutations- mutations that cause death before birth. II. Specific types of mutations

Download Presentation

Goal 5:

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Goal 5

Goal 5:

Gene Mutations


Goal 5

  • Mutation- permanent change in the DNA of an organism

    • Germ Line mutations-occur in gametes

    • Somatic mutations-occurs in body cells

    • Lethal mutations-mutations that cause

  • death before birth


Goal 5

II. Specific types of mutations

A. Chromosome mutations - changes in the chromosome or addition/loss of a chromosome


Goal 5

  • 1. Deletion- loss of a piece of chromosome

  • 2. Inversion - chromosome will switch parts of a chromosome

    • Results in pieces of chromosomes in backwards order


Goal 5

3. Translocation-a piece of chromosome breaks off and reattaches to another chromosome

Ex: a piece of chromosome 9 breaking off and attaching to chromosome 22, this is shown to cause leukemia

4. Duplication – addition of a piece of chromosome


Point mutations

Point Mutations

Occur at a single point in the DNA sequence

Usually change 1 amino acid in the protein


Substitution

Substitution:

Substitute one base for another.

THE DOG BIT THE CAT

THE DOG BIT THE CAR

AAA GGG CCC AAA TTT

AAA GGG CCC AAA TTA


Frame shift mutations

Frame shift Mutations

Shift the 3-letter groupings over by 1 letter

Affects every amino acid that follows the mutation

Can make a protein unable to perform normal functions


Goal 5

INSERTION:

Insert 1 base

THE DOG BIT THE CAT

THE DOG BBI TTH ECA T

AAA GGG CCC AAA TTT

AAA GGG CCC CAA ATT T


Goal 5

DELETION:

Delete 1 base

THE DOG BIT THE CAT

THE DOG ITT HEC AT

AAA GGG CCC AAA TTT

AAA GGG CCA AAT TA


  • Login