In order to study our genes, scientists must extract the DNA from human tissue. Would you expect the method of DNA extraction we used for the strawberry to be the same for human DNA? Explain.

No, since DNA is quite fragile and the methods used in this experiment tend to break it apart. Scientists, therefore use special chemicals and procedures to protect DNA. For example, they add chemicals to control the acidity of the solution. Scientists use other chemicals to cut DNA apart very precisely to look at one part at a time. This process can take several days to several weeks

Explanation:

Is the DNA in any cell in the human body the same? Explain your answer.

           Yes, in a multicellular organism (such as a human or a strawberry), all cells contain the same DNA. However, multicellular organisms have many different types of cells. For example, humans have liver cells, muscle cells, skin cells, brain cells, and the list goes on. It is not the DNA that makes each cell different but rather the way it is regulated by the cell. The combinations of genes that are turned on and off are what determine the shape of the specific cell along with its specific function.

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