1. Gene regulatory elements are
a) trans-acting transcription factors
b) cis-acting transcription factors
c) trans-acting DNA sequences
d) cis-acting DNA sequences
2. The unwinding of DNA during the initiation of transcription is mediated by the helicase activity by:
a) TFIID
b) TFIIH
c) TFIIF
d) TFIIE
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1. Gene regulatory elements are a) trans-acting transcription factors b) cis-acting transcription factors c) trans-acting DNA...
In the GAL gene system, __________ are cis-acting regulatory elements, and __________ protein is a trans-acting regulatory protein.
28. Regulatory transcription factors (the proteins themselves) A. are trans-acting factors. B. are cis-acting elements. C. are promoters. D. are the same in all cells regardless of tissue type. E. are encoded by centromeres. 29. The process that leads to development haploid gamete is best described as ________. A. segregation B. independent assortment C. mendelian inheritance D. dominance 30. A cross between two individuals with different phenotypes that resulted in approximately 50% of each type of offspring would indicate the...
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What are transcription factors? regulatory DNA sequences that bind to the promoter region of a gene regulatory DNA sequences that bind to a protein regulatory motifs that bind to the promoter region of a gene regulatory proteins that bind to specific DNA sequences
Choose the cis-elements. Click on the cis regulatory elements only. Control of eukaryotic gene expression (gene control) can occur at multiple levels from DNA accessibility to post-translational changes to polypeptides/proteins. Silencers, repressors, transcription factors, activators, enhancers, insulators histone acetyltransferases (HATS), histone deacetylases (HDACs) histone remodellers and DNA methyltransferases all play a role in gene control.
Define cis-acting elements and trans-acting factors. How do they in a eukaryotic cell?
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What are “cis-regulatory elements,” “trans-regulatory factors,” “exons,” “introns,” “untranslated regions,” “proximal promoters,” “enhancers,” “repressors,” "activators,” “caps,” and “poly-A tails”? Which are protein coding sequence (or are actual proteins); which are not? Which make it into mature mRNA?
Which of the following is NOT a function of transcription that requires the activity from subunits of the Core RNA Palymerase? a. RNA polymerase activity that base-pairs and polymerizes nucleotides to make mRNA. b. Helicase activity that unwinds the double-stranded DNA molecule for transcription c. Specific recognition of -35 box and -10 box sites in the promoter region. d. General binding that helps RNA polymerase loosely adhere to DNA, before Transcription begins. Oe. Trick Question. The Core RNA polymerase can...
32P-labeled promoter DNA was mixed, in various combinations, with the general transcription factors TFIID (D), TFIIA (A), TFIIB (B), TFIIF (F), and RNA polymerase II (Pol II). Binding of these factors to the promoter DNA was autoradiograph of the gel is shown below. The anode (+ electrode) is at the bottom. Labels on top of each lane indicate the factors mixed with DNA. For binding reactions 3-7 (lanes 3-7), the concentration of RNA Pol II was continually increased from zero...