Category Archives: Ethics
DNA Structure (Core and AHL)
This is a short one – class presentation is here (click shadowed images for animations and movies):
Here’s a decent video from BBC AS Guru with David Suzuki:
–
And here’s a very stylized video of DNA structure from Hybrid Medical Animation. See if you can narrate it:
–
The story of the discovery of the double-helix structure is a good example international collaboration and competition, and led to the Nobel prize for Crick, Watson and Wilson (who we never hear about). You’ve got to feel for Rosalind Franklin – her work was key in their discovery and she wasn’t cited for it until after her death.
Here’s a great video, though the presenter sound like he has a mouth full of marbles:
Synthetic Biology – the man-made future?
Where’s the money in Biology? Probably where the future lies – genetics and synthetic biology.
As we learn more about genomes and the way different organisms (including pathogens) work, we can move towards creating targeted responses and DNA-level manipulation. Synthetic biologists take DNA and try to re-work it into a solution to a problem – by creating synthetic DNA, they hope to achieve control over the functions of the organism. They hope to generate alternative sources of fuel, targeted treatments and vaccines and many more applications.
Click on the image to the right to download a useful poster from SEED magazine.
BioBricks (company link) are a leading example of synthetic biology in action. Think of them like lego bricks or parts of standard computer code – you can take them and (theoretically) fit them into any genome. This is one of the wonders of DNA – base-pairings and the universality of the genetic code allow these researchers endless opportunities for tinkering and advancing science. Some BioBricks are ‘parts’, some are ‘devices’ and others are ‘systems’ – sections of code that increase in complexity and functionality.
There is an exciting world of information out there about this topic, and it’s well worth looking at if you think your future lies in biotechnology. It’s a discipline that pulls together Biology, Physics, Chemistry, Maths, Engineering and Programming, and the ways in are various. If you want to find out more about a career in synthetic biology, MIT are world-leaders in the field.
For a quick explanation of how synthetic biology works (and an interesting hardware/software analogy) watch the video from ScientificAmerican below:
You might also want to read ‘Prey’ by Michael Crichton for a bit of light holiday scare-mongering. Imagine ‘The Andromeda Strain‘ with nanoparticles.
And while we’re on the subject of Scientific American, you may as well check out their video channel on YouTube. It’s much like the NewScientist one.
Gene Therapy ‘Reverses Hereditary Blindness’
Awesome. And just in time for the Grade 11 Genetics unit!
Here’s the NewScientist article. And here’s an old one about gene therapy treating deafness.
Here is an article from the Guardian’s Science section that sums it up nicely.
Learn.Genetics @ Utah has loads of gene therapy interactives to learn more.
And for the hard-of-researching, here is the gene therapy wikipedia page.
Exciting times we live in.
Human Genome Project
First stop, the official website from the National Institute of Health
Here’s a great interactive from DNAi at the Dolan DNA Learning Centre
Now for some videos:
Mickey-Mouse introduction, bit of review on transcription and translation:….
If you have a spare hour (I don’t), here’s Charlie Rose interviewing Dr. J. Craig Venter:
Here’s James Watson (famous for co-discovering the structure of DNA and the first person to receive their own personal genome) chatting with NewScientist:
And don’t forget Learn.Genetics excellent site.
Learn.Genetics @ Utah
Easily the best Genetics resource out there. Loads of Flash animations, Shockwave virtual labs and up-to-date information. Well worth spending some time there and seeing what could be used in class. Teachers can register for news and teaching ideas.
Virtual labs include DNA Extraction, Gel Electrophoresis and a DNA Microarray. Perfect for the DP Genetics unit.
Genetic Engineering: Glowing Pigs and Fish
I’ve no idea where this clip was taken from, but it’s a good 5-minute warmer for the topic of GM and it’s possibilities and potential pitfalls.
Eurostemcell.org – Stem Cell Stories
Stem Cell Story
These video resources from eurostemcell.org are well worth investing in – and since I bought the first video last year, there have been three more produced. Three are now available to view online. Great quality, short and suitable.
Edit: 2011 They can now be viewed online through their website and YouTube!
i-Biology 