Campbell Biology 11th Edition - Valuepack
11th Edition
ISBN: 9780134833545
Author: Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece Neil A. Campbell Lisa A. Urry
Publisher: PEARSON
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Textbook Question
Chapter 18.3, Problem 3CC
MAKE CONNECTIONS Ø Inactivation of one of the X chromosomes in female mammals involves IncRNA called XIST RNA. mentioned in this section and in Concept 15.2. Describe transcription and binding of XIST RNA, then suggest a model for how it initiates Barr body formation.
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9
Mating
Ste12
Tec1
Budding
17. (8 points) Scientists are studying the transcription factors
Ste12 and Tec1. They have found that when ste12 binds to
one part of the genome alone it activates the transcription
of genes important in mating pheromones. They also found
that when Tec1 binds to another part of the genome alone
it activates the transcription of cellular budding genes.
Lastly, they found that in another part of the genome,
Ste12 and Tec1 both bind to the DNA, they activate the
transcription of genes that control the formation of filaments.
a) These proteins bind to enhancers. Is Ste12 and Tec1 activators or mediators? How do
you know?
Filamentation
b) Is this system an example of combinatorial control or coordinated control, both or
neither? Explain your answer.
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Chapter 18 Solutions
Campbell Biology 11th Edition - Valuepack
Ch. 18.1 - How does binding of the trp corepressor to the trp...Ch. 18.1 - Describe the binding of RNA Polymerase,...Ch. 18.1 - WHAT IF? A certain mutation in E. coli changes...Ch. 18.2 - In general, what are the effects of histone...Ch. 18.2 - MAKE CONNECTIONS Speculate about whether the same...Ch. 18.2 - Compare the roles of general and specific...Ch. 18.2 - Once mRNA encoding a particular protein reaches...Ch. 18.2 - WHAT IF? Suppose you compared the nucleotide...Ch. 18.3 - Compare miRNAs and siRNAs, including their...Ch. 18.3 - WH AT IF? Suppose the mRNA being degraded in...
Ch. 18.3 - MAKE CONNECTIONS Inactivation of one of the X...Ch. 18.4 - MAKE CONNECTIONS As you learned in Chapter 12,...Ch. 18.4 - MAKE CONNECTIONS Explain how the signaling...Ch. 18.4 - How do fruit fly maternal effect genes determine...Ch. 18.4 - Prob. 4CCCh. 18.5 - Prob. 1CCCh. 18.5 - Under what circumstances is cancer considered to...Ch. 18.5 - MAKE CONNECTIONS The p53 protein can activate...Ch. 18 - Compare and contrast the roles of a corepressor...Ch. 18 - Describe what must happen in a cell for a gene...Ch. 18 - Why are miRNAs called noncoding RNAs? Explsin how...Ch. 18 - Describe the two main processes that cause...Ch. 18 - Compare the usual functions of proteins encoded by...Ch. 18 - If a particular operon encodes enzymes for making...Ch. 18 - Muscle cells differ from nerve cells mainly...Ch. 18 - The functioning of enhancers is an example of (A)...Ch. 18 - Cell differentiation always involves (A)...Ch. 18 - Which of the following is an example of...Ch. 18 - What would occur if the repressor of an inducible...Ch. 18 - Absence of bicoid in mRNA from a Drosophila egg...Ch. 18 - Which of the following statements about the DNA in...Ch. 18 - Within a cell, the amount of protein made using a...Ch. 18 - Prob. 10TYUCh. 18 - draw it The diagram below shows five genes,...Ch. 18 - Prob. 12TYUCh. 18 - Prob. 13TYUCh. 18 - SCIENCE. TECHNOLOGY, AND SOCIETY Trace amounts of...Ch. 18 - WRITE ABOUT A THEME: INTERACTIONS In a Short essay...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE The flashlight fish has...
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- Discuss Concepts Why do you suppose cells evolved internal response mechanisms using molecules that bind GTP instead of ATP?arrow_forwardExplain this cycle.arrow_forwardHow does NF-kB induce gene expression? A small, hydrophobic ligand binds to NF-kB, activating it. Phosphorylation of the inhibitor Ik-B dissociates the complex between it and NF- kB, and allows NF-kB to enter the nucleus and stimulate transcription. NF-kB is phosphorylated and is then free to enter the nucleus and bind DNA. NF-kB is a kinase that phosphorylates a transcription factor that binds DNA and promotes protein production.arrow_forward
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