Scientists at the Translational Genomics Research Institute have developed a way to identify suspects at crime scenes when there is only a small amount of DNA, or even if the individual’s DNA is mixed with hundreds of other people’s DNA. They were able to identify an individuals DNA even if it was only .1 percent of the total amount of DNA using genotyping microarrays. They successfully identified the DNA even when it was among more than 200 individual samples. This could be very useful for investigators, which will help them better identify possible suspects; even if there have been many people at the crime scene. It may also be useful in the reprocessing of evidence from previous crime scenes. It would also be extremely useful since a lot of DNA evidence is made useless due to contamination, and this would enable the investigators to use the specific DNA and disregard other samples in the mix.
http://www.sciencedaily.com/releases/2008/08/080828220505.htm
6 comments:
I found this article was very interesting, because it is showing a new piece of DNA that can help out in crime scenes. I thought that you gave enough information to address what the aeticle was about, and I also thought that thropugh the information that you could learn alot about the topic. Overall this was a good article and it was also very interesting.
This article is an extremely interesting topic right from the beginning and the heading did a great job catching my attention. The main facts given about the DNA evidence advancements were great to learn about for they are a very complex way of collecting evidence. However, I felt the article was a little unclear on how the new technologies of DNA analysis allowed scientists to determine the origin of a sample of DNA that was mixed with 100s of there samples. I also thought the general wording of the article could have been improved to make the summary a little more understandable. Yet, in the end, I liked the article and was very interested in the topic at hand.
The article was very relevant and well presented. Good detail was given about how this advancement could be used my scientists. My only suggestion is that it would be useful to know how this new process is carried out. I learned that multiple DNA can now be separated and used in forensic investigations.
I believe Christie did a great job at summarizing this article. It was well written and easy to follow. I particularly liked how clear she made the facts such as .1 percent of DNA is needed to identify it. Also it was made clear how this is used when she described how one DNA sample was identified in a pool of about two hundred samples. The end is a little misleading and i might change it up because of the whole contaminated DNA still being able to be used. Overall this was a good article and an interesting topic.
This is a well written review of the article. i always through one would need a some what large mount of DNA to identify someone. But now after reading this i found out even if there is more than one type of DNA mix together they can still determine the identity of the person. this was full of information great job.
I think that this finding is very important and I am glad that someone wrote about it. The topic is very interesting. The identification of DNA is crucial for forensic science cases. I like that the author explained why this finding is so important. She lists the reasons. The post is very concise which makes it easy to understand.
I wish a little more information was given. In addition, perhaps the author could give her opinion on the importance of the finding.
I never knew that such a small amount of genetic information could be so important and yield so much information.
Post a Comment