BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 10, Problem 2SA
Binding of _______ to _______ in DNA can increase the rate of transcription of specific genes.
| a. activators; repressors | c. repressors; operators |
| b. activators; enhancers | d. repressors; enhancers |
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Students have asked these similar questions
A repressor is a __________ that _________ transcription.
a. small effector molecule, inhibits
b. small effector molecule, enhances
c. regulatory protein, inhibits
d. regulatory protein, enhances
Transcription factors include ______________.
a.
silencers and enhancers
b.
promoters and insulators
c.
activators, repressors, and translational factors
d.
activators and repressors
e.
enhancers and repressors
Proteins that influence RNA synthesis by binding directly to DNA are called_____ . a. promoters c. operators b. transcription factors d. enhancers
Chapter 10 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 10 - Gene expression does not vary by ________. a. cell...Ch. 10 - Binding of _______ to _______ in DNA can increase...Ch. 10 - Prob. 3SACh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 6SACh. 10 - Prob. 7SACh. 10 - Prob. 8SACh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SA
Ch. 10 - Prob. 11SACh. 10 - Prob. 12SACh. 10 - Prob. 13SACh. 10 - True or false? Gene expression patterns can be...Ch. 10 - Match the terms with the most suitable...Ch. 10 - Why are some genes expressed and some not?Ch. 10 - Do the same mechanism of governing gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
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- The binding of ________ is required for transcription to start. a. a protein b. DNA polymerase c. RNA polymerase d. a transcription factorarrow_forwardAs trytophan levels increase in the cell, _____ bind(s) to active aporepressors, causing ______ of tryptophan operon. a. inducers, negative regulation b. repressors, co-repressing c. tryptophan, negative regulation d. tryptophan, positive regulation e. B-lactose, negative regulationarrow_forwardPositive regulators are called: A. Repressors B. Activators C. Enhancers D. None of the abovearrow_forward
- The transcription factors would recognize and bind to nucleotides between the positions _____________________________. Group of answer choices A. +1 to +55 B. -1 to -22 C. -16 to -22 D. +1 to +25arrow_forwardE. coli has five genes that code for enzymes that make tryptophan. These genes are regulated by a single promoter and transcribed as one long gene. The presence of tryptophan shut down the production of tryptophan by the cell by binding to the repressor. This changes the repressors shape allowing it to bind to DNA operator, blocking RNA polymerase and cutting off the production of tryptophan. a. Describe what woud happen to the operon if some of the cells had a mutation on the repressor, not allowing it to bind with tryptophan. The repressor is described as an allosteric protein. What does this mean? b. Does the tryptophan model demonstrate an inducible or repressible operon? What is your evidence? *arrow_forwardAn enhancer is a _____________ that ___________ the rate of transcription. a. trans-acting factor, increases b. trans-acting factor, decreases c. cis-acting element, increases d. cis-acting element, decreasesarrow_forward
- _____ is the combination of a seat, elation, another modifications to the histones that allow for changes in DNA winding and unwinding a. Epigentics b. Histone code c. Heterochromatin d. Post translational modificationsarrow_forwardA transcription factor (protein - orange/green) is bound to a promoter of a gene (DNA - blue) it regulates. What changes would result in the gene not being expressed? A. Mutations in the DNA sequence where the TF is bound B. Mutations in the DNA binding domain of the TF C. Mutations in the 3’UTR (untranslated region) of this gene A and B only B and C only A, B, and Carrow_forwardRNA splicing removes ________ from the RNA transcript. a. exons b. axons c. intronsarrow_forward
- Tightly coiled DNA is ________. a. known as hypermethylated b. translationally regulated c. transcriptionally inactivearrow_forwardMatch the terms with the most suitable description. ___ operon a. makes a man out of you ___ Circadian rhythm b. binding site for repressor ___ Barr body c. can be epigenetic ___ differentiation d. inactivated X chromosome ___ mRNA zip code e. controls multiple genes ___ DNA methylation f. localization mechanism ___ eyeless g. speeds transcription ___ activator h. required for eye formation ___ SRY gene i. effect of regulatory loops ___ operator j. cells become specializedarrow_forwardIs 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.arrow_forward
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