Human DNA Extraction Lab
In this experiment we questioned whether DNA could be separated from cheek cells in order to study it. We found that it could be separated, as long as the procedure is followed extremely carefully. It can be observed after precipitation. We know this because we extracted our own DNA, directly after adding the alcohol to our DNA solution. The DNA was white and floated at the top of the test tube. We knew it could be observed after precipitation based on our prior research. This data supports our claim because after adding the alcohol we immediately saw the effects on the gatorade solution.
While our hypothesis's supported by our data, there could have been some errors due to timing mis calculations and due to step mix ups. My mixing up the stepping we could have prevented precipitation and messed up the whole experiment. By mis calculating the time we could have also messed up the solution and caused the alcohol to have no effect. Due to these errors, in future experiments I would recommend using a timer instead of watching the clock, and triple checking your procedure.
This lab was done to demonstrate how DNA can in fact be removed by your body cells, and how it is present on every cell that you have. From this lab I learned the process on DNA extraction which helps me understand the meaning of precipitation. Based on my experience from this lab, I could apply this extraction technique to other uses such as on fruits like strawberries and bananas.
While our hypothesis's supported by our data, there could have been some errors due to timing mis calculations and due to step mix ups. My mixing up the stepping we could have prevented precipitation and messed up the whole experiment. By mis calculating the time we could have also messed up the solution and caused the alcohol to have no effect. Due to these errors, in future experiments I would recommend using a timer instead of watching the clock, and triple checking your procedure.
This lab was done to demonstrate how DNA can in fact be removed by your body cells, and how it is present on every cell that you have. From this lab I learned the process on DNA extraction which helps me understand the meaning of precipitation. Based on my experience from this lab, I could apply this extraction technique to other uses such as on fruits like strawberries and bananas.
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