Why does DNA need to be extracted from cell before it can be analyzed?

DNA needs to be extracted from cells before analysis to isolate it from other cellular components, such as proteins, lipids, and carbohydrates, that can interfere with the analysis. By purifying the DNA, researchers can ensure that they are studying only the genetic material of interest. This extraction process also helps to break down cell membranes and release the DNA into a solution, making it accessible for various techniques, such as PCR or sequencing.