factors that can produce gene mutations
Download
Skip this Video
Download Presentation
Factors that can produce gene mutations…

Loading in 2 Seconds...

play fullscreen
1 / 12

Factors that can produce gene mutations… - PowerPoint PPT Presentation


  • 57 Views
  • Uploaded on

Mutations. Factors that can produce gene mutations…. Mutation : a change in the DNA sequence that is inherited. a) ____________ b) ______________ c) ______________. What happened?. What happened?.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Factors that can produce gene mutations…' - mark-lynch


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
factors that can produce gene mutations

Mutations

Factors that can produce gene mutations…

Mutation: a change in the DNA sequence that is inherited

a) ____________

b) ______________

c) ______________

slide2

What happened?

What happened?

slide3
____________ mutation: A mutation that causes the reading frame of codons to change, usually resulting in different amino acids being incorporated into the polypeptide
slide5
_______________mutation: A mutation that converts a codon from an amino acid into a termination codon – very harmful!
slide6
_______________mutation: A mutation that results in the single substitution of one amino acid in the resulting polypeptide
which one is worse missense or nonsense
Which one is worse, missense or nonsense?

A _________________ mutation results in the termination of the translation, therefore the protein is inactive.

A _________________ mutation can be just as harmful, however, there is the slight chance that it would not.

slide8
Determine whether or not the following mutations would be harmful. Translate the mRNA sequence into protein to help you decide. The mutation is indicated in red.
    • AUG UUU UUG CCU UAU CAU CGU
  • AUG UUU UUG CCU UAC CAU CGU
slide9

b) AUG UUU UUG CCU UAU CAU CGU

  • AUG UUU UUG CCU UAA CAU CGU
    • c) AUG UUU UUG CCU UAU CAU CGU
  • AUG UUU CUU GCC UUA UCA UCG U
key differences in genome
Prokaryotes

_______and circular

All regions are coding, except for ________and __________

___________of operons

Eukaryotes

_______ and arranged in chromosomes

Consists of coding and noncoding regions

___________of operons

Key Differences in Genome
key differences in transcription
Prokaryotes

Coupled with ___________

Lack of ________means no excission

Eukaryotes

Occurs in the __________

Introns excised by ______________ and exons joined together

Key Differences in Transcription
key differences in translation
Prokaryotes

Commence with _______-methionine

Ribosome recognizes Shine-Dalarno sequence on mRNA as binding site

Ribosomesare _________than in eukaryotes

Eukaryotes

Commences with methionine

Ribosome recognizes 5’ cap on mRNA as binding site

Occurs in the cytoplasm

Ribosomes are larger than in prokaryotes

Key Differences in Translation
ad