SSS 2011-10-21(在线收听

 This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?

 
"The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome, that technology is available to folks like us."
 
Northern Arizona University's Paul Keim at the ScienceWriters2011 conference. The ability to compare genomes is a powerful tool for identifying the origins of a natural disease outbreak or bioterrorism. Keim's team examined the anthrax mailed to victims in the 2001 attacks and determined that it did not come from Iraq.
 
"The government really wanted to figure out what was going on there. Half a million dollars to sequence a genome, no problem, go do it. Go do it 20 times if you want. And so we had access to this technology. So we were able to push the limits of what could be done in this area of molecular identification of pathogens at a very early stage. Ten years ago. Now we're doing it on everything. Because the cost of this technology has plunged. We can sequence a genome of a bacterium for somewhere between $10 and $100."
 
Thanks for the minute. For Scientific American's 60-Second Science, I'm Steve Mirsky.
  原文地址:http://www.tingroom.com/lesson/sasss/2011/10/160604.html