My Conclusion of This Year

  The time passed so fast since it is already a year.  My favorite activities that I mostly like in this class is different kinds of experiments or labs that we did  because I had a lot of fun from these experiments.  However, I still have the least like part in this class which is the products that we use during the experiments are not that professional.  In addition, if I could change one thing in this class, then I am going  to change the class time because we always do not have enough time to finish the lab and complete the worksheets.

How DNA Changed Us Investigate Crime

 The DNA with exceptional identical twins are basically found in blood cell.  For example blood, skin, saliva, semen, and hair follicles are the essential DNA during the crime test.  There are different DNA techniques to investigate the crime, such as RELP, PCR analysis, STR analysis, mitochondrial analysis, and Y chromosome analysis.  RELP is the first DNA investigation application.  To analyze DNA, forensic scientists use a specialized enzyme to analyze the different lengths of DNA from digesting result.  PCR anaylsis is to use millions of exact copies of DNA from a biological sample.  The STR analysis is to evaluate the specific region of DNA.
http://www.ornl.gov/sci/techresources/Human_Genome/elsi/forensics.shtml