Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 13, Problem 1FIB
Synthesis of RNA from the instructions in DNA is called _____. Synthesis of a protein from the instructions in mRNA is called ____. Which structure in the cell is the site of protem synthesis? ____.
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. Consider a base substitution mutation that occurred in a DNA sequence that resulted in a change in the
encoded protein from the amino acid glutamic acid to aspartic acid. Normally the glutamic acid amino acid
is located on the outside of the soluble protein but not near an active site.
O-H¨
A. What type of mutation occurred?
O-H
B. What 2 types of chemical bonds are found in the R-groups
of each amino acid? The R groups are shaded.
CH2
CH2
CH2
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H2N-C-COOH
1
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H
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protein. Explain what effect this mutation will have on this protein's function and why.
engineered constructs that consist of hollow fibers are acting as synthetic capillaries, around which cells have been loaded. The cellular space around a single fiber can be modeled as if it were a Krogh tissue cylinder. Each fiber has an outside “capillary” radius of 100 µm and the “tissue” radius can be taken as 200 µm. The following values apply to the device:R0 = 20 µM/secaO2 = 1.35 µM/mmHgDO2,T = 1.67 x 10-5 cm2/secPO2,m = 4 x 10-3 cm/secInstead of blood inside the fibers, the oxygen transport and tissue consumption are being investigated by usingan aqueous solution saturated with pure oxygen. As a result, there is no mass transfer resistance in the synthetic“capillary”, only that due to the membrane itself. Rather than accounting for pO2 variations along the length ofthe fiber, use an average value in the “capillary” of 130 mmHg.Is the tissue fully oxygenated?
Molecular Biology
Please help with question. thank you
You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold
6. Mutations in the promoter that prevent binding of RNA polymerase
7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase
Chapter 13 Solutions
Biology
Ch. 13.1 - describe three types of RNA that play roles in...Ch. 13.1 - Prob. 2CYLCh. 13.1 - Prob. 3CYLCh. 13.2 - Prob. 1TCCh. 13.2 - Prob. 1CYLCh. 13.2 - Prob. 2CYLCh. 13.2 - describe an example of post-transcription...Ch. 13.3 - Prob. 1TCCh. 13.3 - Prob. 1CSCCh. 13.3 - Prob. 1CYL
Ch. 13.3 - Prob. 2CYLCh. 13.3 - Prob. 3CYLCh. 13.3 - Prob. 4CYLCh. 13.4 - Prob. 1CSCCh. 13.4 - describe three different types of mutations?Ch. 13.4 - Prob. 2CYLCh. 13.5 - Prob. 1HYEWCh. 13.5 - Envision yourself as a physician. A mother,...Ch. 13.5 - Prob. 2TCCh. 13.5 - Prob. 1CYLCh. 13.5 - Prob. 2CYLCh. 13.5 - Prob. 3CYLCh. 13.5 - Prob. 4CYLCh. 13.5 - Prob. 1CTCh. 13 - Prob. 1MCCh. 13 - Which of the following is not true of RNA? a. It...Ch. 13 - Prob. 3MCCh. 13 - Prob. 4MCCh. 13 - Prob. 5MCCh. 13 - Synthesis of RNA from the instructions in DNA is...Ch. 13 - Prob. 2FIBCh. 13 - Prob. 3FIBCh. 13 - Prob. 4FIBCh. 13 - Prob. 5FIBCh. 13 - If a nucleotide is replaced by a different...Ch. 13 - Prob. 1RQCh. 13 - Name the three types of RNA that are essential to...Ch. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Define mutation. Describe four different effects...Ch. 13 - Prob. 1ACCh. 13 - Prob. 2AC
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