Which of the following gene expression regulatory mechanisms saves the most energy but takes the longest to fully express the genes once signaled? a. transcriptional regulation b. post-transcriptional regulation c. post-translational regulation d. translational regulation

Which of the following gene expression regulatory mechanisms saves the most energy but takes the longest to fully express the genes once signaled? a. transcriptional regulation b. post-transcriptional regulation c. post-translational regulation d. translational regulation

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 10TYU: Which of the following is an example of positive control? (a) transcription occurs when a repressor...

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Nutrition and diet

We are involved in several daily activities. These actions need a significant quantity of energy. The food we eat provides this energy. Food is necessary for development, repair, and other living activities since it supplies energy. All of these are part of the living practice known as nutrition. Nutrition is the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease. Nutritionists employ concepts from molecular biology, biochemistry, and genetics to understand how nutrients affect the human body. Nutrition also looks at how people can use their diet to reduce their risk of disease, as well as what happens when they ingest too much or too little of a nutrient and how allergies emerge.

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Which of the following gene
expression regulatory mechanisms
saves the most energy but takes the
longest to fully express the genes once
signaled?
a. transcriptional regulation
b. post-transcriptional regulation
c. post-translational regulation
d. translational regulation

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Is each of the following statements true or false? A. An enhancer is a type of regulatory element. B. A core promoter is a type of regulatory element. C. Regulatory transcription factors bind to regulatory elements. D. An enhancer may cause the down regulation of transcription.
Which of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.
Which of the following gene expression regulatory mechanisms saves the most energy but takes the longest to fully express the genes once signaled? a. transcriptional regulation b. post-transcriptional regulation c. post-translational regulation d. translational regulation
Which of the following is an example of post-transcriptionalcontrol of gene expression?(A) the addition of methyl groups to cytosine bases of DNA(B) the binding of transcription factors to a promoter(C) the removal of introns and alternative splicing of exons(D) gene amplification contributing to cancer
Can one transcription factor sometimes act as a repressor and sometimes act as an activator? a. Yes, but it depends on where the transcription factor binds in the promoter b. Yes, but it depends on other proteins that might act with the transcription factor c. No, transcription factors are always either activators or repressors d. Yes, but only if a mutation happens
Which of these is used in the transcription of all genes? Choose all correct answers. A. Core promoter B. Proximal promoter C. Distal promoter D. General Transcription Factors E. Regulatory Transcription Factors
What will result from the binding of a transcription factor to an enhancer region? a. decreased transcription of an adjacent gene b. increased transcription of a distant gene c. alteration of the translation of an adjacent gene d. initiation of the recruitment of RNA polymerase
Which of the following DNA elements or proteins would you expect to find only in some cells in a organism? A. The enhancer for gene Y B. The transcription factor that activates gene Y C. A general transcription factor protein D. A and B E. The promoter for gene Y
Eukaryotic cells have multiple complex mechanisms for the regulation of gene expression, but a regulatory mechanism they rarely (if ever) use is a. operons. b. regulatory proteins. c. transcriptional factors. d. promoters.
Which of the following does not accurately describe eukaryotic transcriptional factors? a. Changes in transcriptional factor express can lead to changes in development. b. Most can regulate multiple different genes. c. They are each specific to one gene. d. Expression of different transcription factors leads to differentiation of cells.
Regulatory transcription factors can be modulated by a. the binding of small effector molecules. b. protein-protein interactions. c. covalent modifications. d. all of the above.
How is transcription directly controlled in eukaryotic cells? a. through the use of phosphorylation b. by means of apoptosis c. using transcription factors and activators d. when chromatin is packed to keep genes turned on e. None of these are correct.