10. In eukaryotes, the level of chromatin organization (how nucleosomes are packed together) Is important in the regulation of gene expression because it ... A) affects the ability of DNA ligase to reach a primer. B) affects the ability of RNA polymerase to reach a primer. C) affects the ability of transcription factors and RNA polymerase II to reach a promoter. D) affects the ability of DNA polymerase to reach a promoter.

10. In eukaryotes, the level of chromatin organization (how nucleosomes are packed together) Is important in the regulation of gene expression because it ... A) affects the ability of DNA ligase to reach a primer. B) affects the ability of RNA polymerase to reach a primer. C) affects the ability of transcription factors and RNA polymerase II to reach a promoter. D) affects the ability of DNA polymerase to reach a promoter.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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a.) Draw a eukaryotic gene with four exons (include the location of the promoter, enhancer, start and stop codon, poly-A signal sequence, 5' UTR, and 3'UTR.). b.) Draw the primary transcript. c.) Draw all of the possible fully mature mRNAs that can be produced from this locus.
1. (a) The initiation factors form a complex with RNA polymerase Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) RNA polymerase binds at the upstream region. Gene is switched ON Gene is switched OFF Does NOT affect the gene expression
Transcription and translation are separate processes in gene expression; however, they have similarities. The following terms all relate to translation. Which of these has a role that is most similar to that of the transcription start site during transcription? A)Start codon B)Stop codon C)tRNA D)Amino acid
Describe three (3) ways in which the primary transcript is modified as it is converted to mRNA.
General transcription factors Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a) act at every gene for a given RNA pol b b) act only at specific genes for under specific conditions c) must be very close to the promoter C d) none of the above
Which will be bound to the Lac Operon in an environment with lactose and glucose? A) both repressor and CAP B) repressor only C) CAP only D) neither repressor nor CAP
According to the histone-code hypothesis, what is one way that cell specialization occurs? a) Differential DNA methylation patterns b) Variation in enhancers in different cells c) TFII transcription factors binding to different histones in a cell-specific manner d) Differential expression of histone modifying enzymes e) Different histones are expressed in different cells
Match the correct terms with its definition A. Transcription B. Translation C. Amino acid D. Dehydration ..........1. Process of producing a polypeptide from mRNA. ..........2. Process that forms messenger RNA from a DNA gene. ..........3. RNA polymerase is continuous by adding nucleotides complementary to the DNA template. ..........4. Small ribosome subunit binds to mRNA, and tRNA enters the P active site on the ribosome. ..........5. Processes of monomers are linked together to synthesize a biological polymer. ..........6. The building blocks of protein.
7) The tryptophan operator a) is an allosteric protein. b) binds to the tryptophan repressor when the repressor is bound to tryptophan. c) is required for production of the mRNA encoded by the tryptophan operon. d) is important for the production of the tryptophan repressor. Page 2 of 6
Using the transcription unit diagrammed below, in which exons are represented by blue boxes and introns are represented by the connecting lines. You discover a single base deletion in region E of this DNA sequence. Regarding transcription, this mutation will likely: 1.) Result in an alteration to the mRNA sequence. 2.)Have no effect on transcription or the mRNA sequence 3.)Prevent transcription at the TATAA box 4.) Result in an increase or decrease in the amount of mRNA transcribed
Which of the following is involved in pre-transcriptional gene regulation? a.) alternative splicing b.) DNA methylation c.) micro RNA d.) histones
Expression of a gene, in terms of greater production of the protein it encodes, could be increased by ... Question 12 options: A) increasing transcription of that gene. B) inhibiting proteases that break down the protein it encodes C) increasing the half life of its mRNA transcript D) A and C E) A, B and C