CAMPBELL BIOLOGY IN FOCUS-W/MASTR.BIO.
3rd Edition
ISBN: 9780134875040
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 15.3, Problem 1CC
WHAT IF? Suppose the mRNA being degraded in Figure 15.13 coded for a protein that promotes cell division in a multicellular organism. What would happen if a mutation disabled the gene for the miRNA that triggers this degradation?
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Q14: The figure below shows a ribosome in the process of translating an mRNA with the sequence:
5'..AUGCCGUAUGCUCUUUA...3'
Elongation
3
5
3
3
LAUGEEGUAUGCU
UACGGC
CG AUGC EUT
P sitez
UAC
A site
A
Met
Pro
Pro
Met
Anticodon
Met
Amino
Incoming-
tRNA
terminus
Pro
© 2001 Sinauer Associates, Inc.
The right side shows the ribosome with an empty A site aligned with the codon 5’UAU 3’.
The next tRNA to occupy the A site on the ribosome will have what anti-codon sequence
( label 5' and 3’)? Keep in mind the wobble pairing rules and make sure your answer is
consistent with the genetic code. Explain your answer.
а.
b. Suppose, just as the ribosome started translating the mRNA, the cell suddenly lost
all of its alanine tRNAs. Using the figure above as a guide, draw and label the state
the ribosome would arrest in.
Chapter 15 Solutions
CAMPBELL BIOLOGY IN FOCUS-W/MASTR.BIO.
Ch. 15.1 - How does binding of the trp corepressor to its...Ch. 15.1 - Describe the binding of RNA polymerase,...Ch. 15.1 - WHAT IF? A certain mutation in E. coli changes the...Ch. 15.2 - Prob. 1CCCh. 15.2 - Compare the roles of general and specific...Ch. 15.2 - Prob. 3CCCh. 15.3 - WHAT IF? Suppose the mRNA being degraded in Figure...Ch. 15.3 - MAKE CONNECTIONS Inactivation of one of the X...Ch. 15.4 - Prob. 1CCCh. 15.4 - WHAT IF? Study the microarray in Figure 15.17. If...
Ch. 15 - If a particular operon encodes enzymes for making...Ch. 15 - The functioning of enhancers is an example of A. a...Ch. 15 - Which of the following is an example of...Ch. 15 - Prob. 4TYUCh. 15 - Prob. 5TYUCh. 15 - Which of the following would not be true of cDNA...Ch. 15 - Prob. 7TYUCh. 15 - SCIENTIFIC INQUIRY Imagine you want to study one...Ch. 15 - FOCUS ON EVOLUTION DNA sequences can act as tape...Ch. 15 - FOCUS ON INTERACTIONS In a short essay (100150...Ch. 15 - Prob. 11TYU
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