Quiz 5 key Spring, 2008

Quiz 5 key Spring, 2008 - Quiz 5 Key, Biology 340, General...

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Quiz 5 Key, Biology 340, General Genetics, Spring, 2008 1. Consider a gene with three exons and two introns. a) draw a mature mRNA that would result from one mode of splicing. b) now draw a mature mRNA that would result from another mode of splicing. Be sure to label your drawing carefully – hint don’t forget that this is a mature mRNA. a) should show one of these modes and b) should show another mode. Most people gave answers that were two examples of only one mode. Please ask if the distinction is not clear. Because your drawing is of mature mRNA it must have a 5’ cap and a poly-A tail. 2. There are three different ways that regulatory transcription factors (specific transcription factors) can themselves be modulated or affected. For example, one of the three ways is to form a dimer (either homodimer or heterodimer) with another transcription factor. a) briefly describe one of the other two ways that regulatory transcription factors can be modulated. b) give an actual example of
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Quiz 5 key Spring, 2008 - Quiz 5 Key, Biology 340, General...

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