BS 6 - DNA Techniques

BS 6 - DNA Techniques
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Slide 1: Tekstslide
BiologieWOStudiejaar 3

In deze les zitten 15 slides, met tekstslides en 2 videos.

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BS 6 - DNA Techniques

Slide 1 - Tekstslide

Today's lesson
1. Genetic modification and transgenic
2. CRISPR-Cas
3. Arguments for and against genetic modification (GM)
4. Genomics
5. DNA tests
6. eDNA
7. Synthetic biology

Slide 2 - Tekstslide

Slide 3 - Link

Biotechnology





DNA of organism does not need to be changed

Slide 4 - Tekstslide

Recominant DNA techniques
1.Take a gene from a healthy person - example: gene for making insulin.
2. Insert the gene into a bacteria.
3. Bacteria can produce insulin.

Slide 5 - Tekstslide

Genetic modification
= the altering of an organism's DNA

genetically modified organism (GMO) = organism in which the DNA has been altered by humans

transgenic = if the new gene originates from another species

Slide 6 - Tekstslide

Genetic modification cont.
See Fig. 1 pg. 145
Apples trees without scab (schurft).
Stonewashed jeans
Disease-free potatoes
Golden rice

Slide 7 - Tekstslide

Editing genes using CRISPR-Cas

Slide 8 - Tekstslide

Examples of gene editing
Chocolate - make the plant resistant to a deadly virus
Bananas -make the plant resistant to a fungus
Coffee - Caffeine has been edited out
Rice - Made more heat and drought resistant
Tomatoes - Give them more taste
Maize - Make more kernels form in dry conditions
Wheat - Make wheat grains that will contain less gluten

Slide 9 - Tekstslide

Slide 10 - Video

Objections to genetic modification
  • The individual character and the well-being of  animals are affected by genetic modification.
  • Unexpected effects may occur (e.g. plagues)
  • The pollen of genetically modified plants can also end up in traditional crops. The offspring then contains the new genes, even though you might not want it to.
  • Transgenic food can pose a threat to our health. 
  • New illnesses that could be transmitted from animals to humans could develop




Slide 11 - Tekstslide

Genomics 

Study of the entire DNA of an organism and the gene it contains.
Makes it easier to detect disease
Use to tailor treatments and medicines to a specific patient

Slide 12 - Tekstslide

DNA tests, e DNA and Synthetic Biology
DNA tests - Used to fight crime, detect 
heritary diseases, find evolutionary kinship
between species, determine parental DNA

eDNA - Environmental DNA - find which species are in an area without having to catch them.

Synthetic DNA - DNA is artificially recreated - used to create microorganisms that can clean up waste or produce biofuels. 
Can also be used for information storage. HELLO (five bytes) have been stored in DNA. All computer data in the word would fit in one kilogram of DNA!

Slide 13 - Tekstslide

Slide 14 - Video

To do
study for the test 

Slide 15 - Tekstslide