Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 3SQ
Binding of ______ to _______ in DNA can increase the rate of transcription of specific genes.
- a. activators; repressors
- b. activators; enhancers
- c. repressors; operators
- d. both a and b
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A repressor is a __________ that _________ transcription.
a. small effector molecule, inhibits
b. small effector molecule, enhances
c. regulatory protein, inhibits
d. regulatory protein, enhances
Proteins that influence RNA synthesis by binding directly to DNA are called_____ . a. promoters c. operators b. transcription factors d. enhancers
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
Chapter 10 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 10 - The expression of a gene may depend on _______. a....Ch. 10 - Prob. 2SQCh. 10 - Binding of ______ to _______ in DNA can increase...Ch. 10 - Prob. 4SQCh. 10 - Prob. 5SQCh. 10 - Muscle cells differ from bone cells because...Ch. 10 - Prob. 7SQCh. 10 - Homeotic gene products _______. a. flank a...Ch. 10 - A gene that is knocked out is ________. a. deleted...Ch. 10 - Which of the following includes all of the others?...
Ch. 10 - Prob. 11SQCh. 10 - Effect of Paternal Grandmothers Food Supply on...Ch. 10 - Prob. 2DAACh. 10 - Effect of Paternal Grandmothers Food Supply on...Ch. 10 - Prob. 12SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Operons _____. a. only occur in bacteria b. have...Ch. 10 - Prob. 15SQCh. 10 - Why are some genes expressed and some not?Ch. 10 - Prob. 2CTCh. 10 - Almost all calico cats (one is pictured in FIGURE...Ch. 10 - The photos above show flowers from Arabidopsis...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- As 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_forwardThe binding of ________ is required for transcription to start. a. a protein b. DNA polymerase c. RNA polymerase d. a transcription factorarrow_forwardPositive regulators are called: A. Repressors B. Activators C. Enhancers D. None of the abovearrow_forward
- Operons______ . a. only occur in bacteria b. include multiple genes c. involve selective gene expressionarrow_forwardThe key to epigenetic regulation is ________. a. controlling accessibility to transcription factors and RNA polymerase binding b. biochemical modification of binding factors c. physical modification of the DNAarrow_forwardIn prokaryotes, the trp operon is under ________ that ________ prevents RNA polymerase from binding. a. negative regulation; biochemically b. negative regulation; physically c. positive regulation; biochemicallyarrow_forward
- 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.arrow_forwardThe experimental growth of an eye on the leg of a fruit fly is most famous for providing direct evidence that________ Select one: a. proteins are involved making eyes b. genes are involved in making eyes c. one operon can control many genes d. genes are regulated via negative feedback e. that one transcriptional factor can regulate many genesarrow_forwardA mutation in Ras that prevents Ras from hydrolyzing GTP. Would cause? Why? A. Increased proliferation B. Decreased proliferationarrow_forward
- E. 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_forwardDuring attenuation, when tryptophan levels are high, the ________ stem-loop forms and transcription _________ the trpL gene. a. 1–2, ends just past b. 3–4, ends just past c. 1–2, continues beyond d. 3–4, continues beyondarrow_forward
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