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Chapter 13 - Chapter 13 Transcription 1 All genes carry the...

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Chapter 13: Transcription 1. All genes carry the information for the production of RNA a. If the RNA is mRNA it will be translated into a protein b. But genes can also code for functional RNA Molecules c. Different Types of RNA 2. Gene function a. Many genes carry the information to make a protein. Many, but not all, proteins are enzymes b. Promoter reads in a 5’ to 3’ direction near the gene c. The promoter sequence is not transcribed 3. RNA Polymerase a. Binds to the promoter region on the template DNA b. Moves along the template DNA strand and synthesizes a complementary strand of RNA c. Consists of 5 subunits that make up the core enzyme: two alpha, and two betas, and an omega d. The sigma factor controls the binding to the premoter i. Without it, RNA polymerase would initiate transcription at a random point 4. Promoters a. Have Consensus Sequences i. Sequences of nucleotides that are similar in many genes from many organisms
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