Thursday, June 24, 2010
Our First Quiz
Over the past two days I have had to learn the names of 22 of my classmates, minus the three of them that I know from the Ivy League Connection, for a quiz. Studying for this quiz has helped us get to know each other. Before our lecture we would sit around and say our names. Then one person would say everyone's name and then the next person would say everyone's name. It was really cool because it was a way that we could all be in the same positions.
In the actual class we did a lab that tested my ability to follow directions. In this experiment, we were asked to isolate DNA from E. coli bacteria that was in a liquid. It was a 20 step lab that I managed to get to the 17th step and then I messed up. We broke the E. coli cells open and isolated the DNA. The tube had a pellet of material at the bottom and liquid at the top. The liquid contained the DNA and the pellet contained everything else that is in a cell. Instead of taking the pellet out, I took the liquid out. I ended up ruining my whole experiment and I felt really bad because I was the last one in the room and the professor and the TA were the only ones left. I felt pressured to get the work done so that they could go or do whatever they needed to do, even though they were happy that I was taking my time and asking questions.
In the second half of the class we discussed what was happening to the DNA while we were putting it in the chemicals and through the centrifuge. I understood what she taught but I was intrigued about the questions she left up to us. She would ask us questions about what would happen if we did not cool the DNA down after it’s been put through the heat bath or what would happen if we added more or less of a chemical or we gave it a longer period of time to break down.
We are also finding out how to make the cafeteria food better by mixing it together and drenching it in sauces. Yesterday night for dinner they served us shredded steaks and the meat was dry so I poured A1 sauce all over it. It made it taste a whole lot better. I never realized what one could create when given simple ingredients.