In the GAL gene system, __________ are cis-acting regulatory elements, and __________ protein is a trans-acting regulatory protein.
In the GAL gene system, UAS are cis-acting regulatory elements, and GAL4 protein is a trans-acting regulatory protein.
Explaination: GAL gene system have two part : GAL4 gene which causes the encoding the yeast transcription activator protein , UAS ( Upstream Activation Sequence) this element act as an enhancer to which GAL4 specifically bind to activate gene transcription.
In the GAL gene system, __________ are cis-acting regulatory elements, and __________ protein is a trans-acting...
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
Provide two examples of cis-acting regulatory elements.
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.
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?
Define cis-acting elements and trans-acting factors. How do they in a eukaryotic cell?
1. trans-acting factors are able to regulate target genes from any chromosome, whereas cis-acting elements can only regulate genes located in the same chromosome. a. True only in operons. In Eukaryotic systems, trans-acting factors only regulate genes in the same chromosome. b. True only in Eukaryotes. Prokaryotes don’t have cis-acting elements. c. True for any organism. d. False. The statement is erroneous 2. Unlike activators, repressors never affect chromatin structure. Repressors inhibit transcription only by binding to the binding sites...
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...
1. (1 pt) If a gene is repressible and under positive control, A. Is the regulatory protein an activator or repressor? B. Explain how an effector molecule, which binds to the regulatory protein, alters the regulatory protein’s ability to regulate expression of the gene. 2. (1 pt) Cis and trans are two terms used to describe mutations. A. Explain the molecular difference between these terms. B. indicate which type of mutation (cis or trans) is dominant to wild-type and which...
How do enhancers differ from promoters as cis-acting regulatory sequences in eukaryotes?
Define the terms cis and trans in terms of mechanisms regulating eukaryotic gene expression.