Sunday, November 27, 2011

Chapter 11: Useful Materials

This video describes the structure of DNA and everything involved with it. Nucleotides are the building blocks of DNA (and RNA). Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group. There are four different types of nucleotides found in DNA, differing only in the nitrogenous base; adenine, guanine, thymine, and cytosine. Adenine and guanine are purines, which are the larger of the two types of bases found in DNA. Cytosine and thymine are pyrimidines; like purines, all pyrimidine ring atoms lie in the same plane. This is just an overview on the structure of DNA. But I thought this video was helpful in knowing the basic components of DNA.

This website (CLICK HERE) provides an animation about DNA replication. I thought this website was quite interesting because it breaks down DNA replication into eight sections to better help you learn. You can also pause, rewind, and fast forward the animation. There are also review questions after each section to check if you retained the knowledge that you just learned. I advise you check out this website!

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