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Name________________ Date:_________________ Biological Animations: Overview Replication and Transcription Please tour the following website based on the DNA content you have been learning recently. They will show you visually some of what is going on and help you to understand exactly what it happening. You will have to answer some questions based on what you see. 1. First go to the page: http://learn.genetics.utah.edu/content/begin/tour/ . Use the tabs at the top of the page and answer the following questions: a. What is DNA? b. What does “DNA” stand for? c. What is the four letter DNA alphabet and what are the special rules by which the alphabet pieces bond together? d. What is a gene? e. What are genes made of? 2. DNA replication is necessary for DNA to make more of itself as needed. Think about itwhen cells copy, there needs to be a copy made of the DNA- otherwise we’d eventually run out. Use google to answer questions a and b below. a. What is the significance of the lysis enzyme? b. What is the significance of the DNA polymerase? Go to http://www.johnkyrk.com/DNAreplication.html Answer the following questions a. When a cell divides, where does the extra DNA come from? b. After viewing the animation, please list 3 components described in the animation. Now you will view animations about transcription. First, please write a brief definition describing transcription. Go to the following animation http://www-class.unl.edu/biochem/gp2/m_biology/animation/gene/gene_a2.html a. What is a chromosome? b. What shape is DNA? c. How many regions does each gene have? Please write them below. d. What does RNA polymerase do? e. How is mRNA formed? What does the “m” stand for in mRNA? e. When does transcription end? Extra Credit: After you have finished, please find other websites that show or talk about DNA replication and/or transcription in an understandable way. List website below and write a brief summary about the website.