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This chapter seemed to focus very heavily on the lab experiments that helped us gain the knowledge we know today about DNA and its replication. We covered Hershey-Chase, Watson-Crick and numerous others who were groundbreaking in the field of DNA, and their real world experiments are examples of problem solving and proper lab work. Because of this chapter's especially high prevalence and stressing of these lab experiments, it makes it even more important to understand the concepts behind experiment, and the theories being tested and how the experiment is testing that theory. That is why this image is useful, because it details the experiment that scientists that DNA replication is semi-conservative, and this one of several experiments that come up in this chapter that are vital to understand.
This very grandiose ties in the process of DNA transcription with protein assembly. This video is very useful because it is important to learn these new concepts about cellular processes in context, not just in a vacuum. The video also does a good job of summing up the gist of transcription, while showing how it factors in with the process of creating proteins. The only problem I had with the video that is that it referred to enzymes and other items as "cellular machines" or some other silly title, instead of just calling the enzyme or whatever its actual name which would've been much more effective. Overall though, a great video that ties in DNA transcription with protein production.
This article discusses the various roles of nucleases in cellular functioning. A few of the functions mentioned in the abstract including cleaving phosphodiester bonds, and assisting DNA replication. However, the main focus of the article is to examine the relationship between catalytic mechanism and biological function. The article ends up showing that there is little correlation between catalytic mechanism and biological function.
Chapter 11: Nucelic Acid Structure, DNA Replicaiton, and Chromosome Structure (Peter)
Comments (1)
Derek Weber said
at 9:21 pm on Dec 16, 2010
Nice work
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