Assignment VII.4 DNA Extraction.

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Questions Corresponding with the Virtual Lab: (3 points each) 1. What are three reasons why someone might need to isolate DNA? Genetic testing, body identification, and forensic evidence 2. Complet... e the following statement: We need cells because that’s where the DNA is. Inside almost every cell in our body is a nucleus, and inside each nucleus is about two meters of DNA. 3. What kind of cells are we using in this virtual experiment? Skin cells from the inside of a mouth. 4. What are the four main steps in purifying DNA from a cheek cell? * Collect cheek cells * Burst cells to release DNA * Separate DNA from protein and debris * Isolate concentrated DNA 5. Lysis is a Greek word that means to separate. 6. What is the purpose of adding the detergent to the skin cells? It disrupts the cell and makes it burst to release the DNA 7. What protein is DNA wrapped very tightly around? Histones [Show More]

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