What Is DNA?

What equipment is used to extract DNA from human cells?

• I'm doing a DNA project and I need information on the following questions: +What equipment do scientists use to analyze DNA samples +How is DNA used as evidence +How does using DNA compare to older methods +What are the benefits and limitations to using DNA to solve crimes +Is DNA analysis foolproof +Cases in which DNA has been used to free some people who were wrongly convicted. If you can then send me some links of websites that have the answers on them. Thank you so much. in advance. ;) +

• Answer:

  First of all, you asked list of questions that a molecular biology for Forensic criminology people. I will try to answer some question. 1. DNA can be extracted by breaking cells and using solvents that will make DNA as long strands , just like cotton threads. 2. take cells and use liquid nitrogen to break cells. 3. DNA runs through some chemical beads due to electrophoretic movements you can seperate DNA based on its molecular weight. 4. DNA analysis is mostly fool proof and is highly dependent on quality and quantity.