Thursday, January 12, 2012

What I thought was interesting from Time, Love, Memory

I was surprised that with such a simple experiment, Seymour Benzer is able to win a nobel prize. His experiemnt with the fruit flys really did prove that the traits can be dominant and recessive. The method he used was mating the flies. One fly had dominate chracteristics such as a bigger wing or what not. Once they are crossed, their offsprings are crossed further to get a genetic mutation. He does this over and over again till one day he is able to cross the offsprings to form a fly with white eyes. He also attempted to discover which flies liked the light and which didn't. He placed the flies in a jar that has 2 ends. One end has light and the other end is dark. The flies then can choose which side they like better. After about 5 minutes, the flies are accustomed to their environment and would then realize that there is a dark side and a lighter side. Thus, this is the method to separate the light lovers and the dark lovers. Towards the end, there was a fly that seem to stay at the dark side. However, it then gradually moved to the light side. There are many factors that can affect such a thing.


Another experiment that was shocking to me was when a scientist cut open the brain of a cat and severed their corpus collasm. The cat was still able to live normally. However, the change was in when the cat looked at something it would not react like it would in the past. The cat is not able to speak when he's supposed to and what not. Because the left side controls speech and the right side controls movement. If his right eye is looking at something only he would not really react, whereas he would normally. They also dissected a frog's brain and to find out that it's similar to humans. The corpus collusm was thought to be useless however, it is not useless. It connects the right side and left side of the brain together. Once it is severed they are no longer connected and each hemisphere would not be able to communicate with the other, thus having different types of functions.

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