technology of engineering food the common between... flounder tomato tomato has an engineered gene...
Post on 24-Jan-2016
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Technology of Engineering Food
The common between...
floundertomato
Tomato has an engineered gene from the flounder
Antifreezing gene
Survey
- What is biotechnology?
- What is DNA?
- What kind of mechanisms do exist?
- What is the best method?
Biotechnology- What is Biotechnology?
- What is DNA?
- What kind of mechanisms do exist?
- What is the best method?
DNA
Shortening of: deoxiribonucleic acid
-Segments of DNA are called genes-Four bases(Guanin, Cytosin, Adenin, Thymin)-Bases are connect with sugar and phosphat Double-helix-structure (like a spiral staircase)
- What is Biotechnology?
- What is DNA?
- What kind of mechanisms do exist?
- What is the best method?
Mechanisms- What is Biotechnology?
- What is DNA?
- What kind of mechanisms do
exist?
- What is the best method?
Biologically Mechanically
Vector: Bacterium
Vector: Virus
Injection
Biolistic
Protoplast Transformation
Agrobacterium Tumefaciens
Virus
Protoplast Transformation
- Taking a cell from an organism
- Dissolving of the cellwall by enzymes
Protoplast is left over
- Adding the new DNA
- Cellwall has to recover in a growth media
Injection
Injecting new DNA with a needle
into the nucleus of a cell.
Biolistic
1. Small beads coated with DNA are load in a gene gun.
2. Shooting the ball into the cell nucleus
3. It cuts the DNA section of the cell and „glues“ the desired DNA into it.
Marker Genes
To find out if the transformation has been succesfull
scientists intodruce a marker gene to the host.
Cells which have been transformed will grow in a media
while the other cells will die.
Best Method- What is Biotechnology?
- What is DNA?
- What kind of mechanisms do exist?
-What is the best method?
Method Pros ConsVector:
Bacteria, Virus
Natural process Parts from the bacteria or virus DNA are insert
too
Protoplast
transformation
Only the desiered DNA is transferred
Cellwalls have been damaged
Injection Only the desiered DNA is transferred
Maybe damaging the cellwall with the needle;
High rate of failure
Biolistic Nothing special Foreign things like titanium or gold are also
insert
Isn´t it fantastic what the scientists can do with their
technology?
But what will the future bring?
Do scientists know their limits?