CAMPBELL BIOLOGY-W/MOD.MASTERINGBIOL.
11th Edition
ISBN: 9780134819815
Author: Urry
Publisher: PEARSON
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Chapter 18.2, Problem 5CC
WHAT IF? Ø Suppose you compared the
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WHAT IF? Since the results support a role for mouse FOXP2 invocalization, you might wonder whether the human FOXP2 protein is akey regulator of speech. If you were given the amino acid sequences ofwild-type and mutant human FOXP2 proteins and the wild-type chimpanzee FOXP2 protein, how would you investigate this question? What furtherclues could you obtain by comparing these sequences to that of the mouseFOXP2 protein?
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WHAT IF? The researchers needed further evidence, so they injectedbicoid mRNA into the anterior end of an egg from a female with a mutationdisabling the bicoid gene. Given that the hypothesis was supported, whatmust their results have been?
Chapter 18 Solutions
CAMPBELL BIOLOGY-W/MOD.MASTERINGBIOL.
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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- Q1: As illustrated here, at what control point is transcription regulated? Q2: What is a possible advantage of regulating gene expression before transcription, versus after? Q3: If you wanted to up-regulate production of the hemagglutinin protein in a tobacco plant carrying the hemagglutinin gene, at which control point(s) would that be possible? Justify your reasoning.arrow_forwardExamining Figure 11-21, what effect do you predict trpAmutations will have on trp mRNA expression?arrow_forwardWHAT IF? What would be the effect of treating cellswith an agent that removed the cap from mRNAs?arrow_forward
- WHAT IF? Suppose X-rays caused a sequence changein the TATA box of a particular gene’s promoter. Howwould that affect transcription of the gene? (SeeFigure 17.9.)arrow_forward7) CRSPR-cas9 has revolutionized are ability to edit genomes. How hasthe CRSPR-cas9 system increased the efficiency of introducing mutations to mammalian genomes?arrow_forwardWHAT IF? In eukaryotic cells, mRNAs have been foundto have a circular arrangement in which proteins holdthe poly-A tail near the 5¿ cap. How might this increasetranslation efficiency?arrow_forward
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