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Author Topic: making and seeing dna strands - last sat event
bandit
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Post making and seeing dna strands - last sat event
on: October 4, 2012, 13:07
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there is a simple way to get corn dna from corn flakes - tech museum in san jose does it - then use 100x usb microscopes to look a it
adric
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Post Re: making and seeing dna strands - last sat event
on: October 4, 2012, 13:40
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do you actually see anything aside from globby ness? we did it with onions, and cheek cells in highschool, but the end result was very anticlimactic. then again im not really into biosciences.

-Quelab, Come make something!

bandit
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Post Re: making and seeing dna strands - last sat event
on: October 4, 2012, 14:23
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You can see the glob with your normal vision. You should be able to see better resolution at 100x, although I just read an article where they are using graphene at 1nm to splice DNA. I also read of a MEMS "spooler/slicer/stitcher" that would take DNA strands, slice them and spool the slices - think a sewing machine bobbin threader - then allow you to stitch the strands back in whatever order you want.

So - I think it would be an easy experiment to conduct. I found, after an exhaustive google search of 5 seconds:

http://learn.genetics.utah.edu/archive/wheatgerm/index.html

http://nature.ca/genome/05/051/0511/0511_m204_e.cfm

http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/how-to-extract-dna-from-a-kiwi-fruit/

and really fancy:

http://www.sumarios.org/sites/default/files/pdfs/gmr1346.pdf

I will bring my 100x usb scope next week. At a very minimum, this is an easy procedure and kids really get into it.
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