Period+4

toc Team Daisy
Morgan M Alas =DNA Extraction from Human Cheek Cells=
 * 1) What are the 5 elements that make up DNA?
 * The 5 elements that make up DNA are carbon, hydrogen, oxygen, phosphorous, and nitrogen.
 * 2. What is the function of DNA from day to day?
 * The function of DNA from day to day is to act like a blueprint, that contain instructions to construct cells, proteins, and RNA.
 * 1) 3. Describe how long strands of double-helical DNA fit into the nucleus of a single cheek cell.
 * The double strand can fit into the nucleus of a single cell because it wraps itself around a protein called histones to form a structure called nucleosomes.
 * 4. What was the purpose of using the cell lysis solution?
 * It disrupted the cell membrane and the nuclear envelope, making the cells burst open to release their DNA.
 * 1) 5. Why does the DNA become visible once the alcohol is added?
 * DNA becomes visible once the alcohol is added because the DNA is a polar molecule and the alcohol is a non-polar substance. Unlike substances do not dissolve with each other, therefore the DNA is suspended in the solution and is visible.
 * 1) 6. If DNA is so thin, how is it that we are able to see it during this simple lab exercise?
 * We are able to see DNA in this lab because the alcohol and the lysis separates everything, so the substances do not dissolve and the DNA is all to make it appear bigger.
 * 1) 7. Why is DNA referred to as your genetic fingerprint?
 * DNA is referred to as your genetic fingerprint because it's often used as evidence in criminal law cases and everybody's DNA is different and so is everyone's fingerprint.
 * 1) 8. Give some examples of how DNA is used everyday.
 * DNA is used to solve crimes, to find family relations, to find cures, to find heredity passed diseases, for reproduction, and to find characteristics of a baby.