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9 Cards in this Set
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- Back
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What is the TATA box
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- area 25 nucleotides 5' (upstream) of transcription site that directs RNA polymerase to transcription site
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What is the CAAT box?
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- area 75 nucleotides 5' (upstream) that helps recruit RNA polymerase
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What are the importance of the transcription factors that are upstream?
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- help regulate efficiency of tATA and transcription site
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What do promotors do?
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- DNA sequence where Pol II binds to and begins transcription
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What do enhancers do?
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- DNA sequences that stimulate Pol II transcription
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What does RNA polymerase I transribe?
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- rRNAs (28S, 18S, 5.8S)
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What does RNA polymerase II transcribe?
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- mRNA, microRNA
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What does RNA polymerase III transcribe?
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- small RNA (tRNA, 5SRNA)
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What does position independent and orientation independent mean and what element does this refer to?
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- position-i: acting either 3' to or 5' to gene)
- orientation-i: acting in natural orientation or flipped onto other strand refers to enhancer |
