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High Schoolers Give Hot Dog A DNA Test (amongst other things)

 
 
Reply Sun 24 Jan, 2010 12:54 am
Quote:
Brenda Tan and Matthew Cost, high school seniors from Trinity School in New York City, used a technique called DNA barcoding to find out what species were present in over 200 animal products. Their extracurricular experiment, which they completed with the help of Mark Stoeckle, of The Rockefeller University, suggests that buyers should beware! shot, produced by flora lichtman. music by Knife Crazy. cover shot by Ralph Hockens/flickr.


http://www.sciencefriday.com/videos/watch/10265
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Type: Discussion • Score: 0 • Views: 2,386 • Replies: 2
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farmerman
 
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Reply Sun 24 Jan, 2010 07:24 am
@tsarstepan,
This was done several years ago by another team of HS kids. The fact that nobody has upped any inspection requirements and food safety still seems to be pretty much of a joke, I am concerned.

PCR testing and data bases have gotten waaay better in just a few years so we could be uncovering the mysteries of food production as routine testing. Sheep milk cheese (like brie) is being passed off by some (probably) highly processed double cream cow cheese is a crime.
farmerman
 
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Reply Sun 24 Jan, 2010 07:56 am
@farmerman,
The technique, applied to species and higher is presently under huge debate as to whether its even a correct methodology . Species are polyphyletic (they have many associated ancestors in their NATURAL evolution) This technique cant account ofr that. ASo cows and sheep may have closer affinities than one DNA (PCR) test can give.
Im sure these kids didnt have huge dollars to do mega repeat samples of that dead cockroach that they are calling a nedw species.
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