biochemistry 9th edition lubert stryer jeremy m be
test bank for biochemistry 9th edition lubert stry
test bank biochemistry 9th edition lubert stryer j
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TEST BANK & SOLUTION MANUAL for Biochemistry 9th Edition. Stryer Lubert ; Jeremy Berg; John Tymoczko; Gregory and Gatto, ISBN 9781319234362 (All Chapter 1-36 )
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Test Bank for Biochemistry, 9e Lubert Stryer, Jeremy Berg, John Tymoczko, Gregory Gatto
Test Bank for Biochemistry, 9e Lubert Stryer, Jeremy Berg,
John Tymoczko, Gregory Gatto
A+ Page 1
, Test Bank for Biochemistry, 9e Lubert Stryer, Jeremy Berg, John Tymoczko, Gregory Gatto
Indicate the answer choice that best completes the statement or answers the question.
1. Which statement about DNA structure is INCORRECT?
a. It is a branched polymer with a flexible backbone.
b. The DNA backbone is built of repeating sugar–phosphate units.
c. Each DNA strand has directionality due to identical orientation of the sugar–phosphate units.
d. Each sugar is connected to two phosphate groups through different linkages.
e. Its structure is a double helix composed of two intertwined strands.
2. What method can be used to separate proteins only by their charge?
a. gel-filtration chromatography
b. affinity chromatography
c. gel electrophoresis
d. ion-exchange chromatography
e. dialysis
3. pUC plasmids are useful for screening cells that contain recombinant DNA because they contain the
gene.
a. β-galactosidase
b. tetracycline resistance
c. green fluorescent protein
d. luciferase
A+ Page 2
, Test Bank for Biochemistry, 9e Lubert Stryer, Jeremy Berg, John Tymoczko, Gregory Gatto
e. DNA polymerase
4. Why are free interactions of water molecules in bulk water more favorable than more ordered interactions
with nonpolar compounds?
a. The total entropy in such interactions increases because the Gibbs free energy is positive.
b. The total entropy in such interactions decreases because the Gibbs free energy is negative.
c. The enthalpy of the ordered state is lower than the enthalpy of the bulk state.
d. The total entropy in such interactions increases because the Gibbs free energy is negative.
e. The total entropy in such interactions decreases because the Gibbs free energy is positive.
5. The lacZα gene encodes the fragment of the:
a. α-galactosidase.
b. carbohydrase.
c. β-galactosidase.
d. α-amylase.
e. β-amylase.
6. What isomers of amino acids are found in proteins and what absolute configuration do they have?
A+ Page 3
, Test Bank for Biochemistry, 9e Lubert Stryer, Jeremy Berg, John Tymoczko, Gregory Gatto
a. L isomer; R absolute configuration
b. D and L isomers; R absolute configuration
c. L isomer; S absolute configuration
d. D isomer; S absolute configuration
e. L and D isomers; S absolute configuration
7. What process generates different mRNA that are templates for different forms of a protein without requiring
a gene for each protein?
a. transcription
b. exon shuffling
c. degenerate splicing
d. alternative splicing
e. recombination
8. What technique can be used to determine the mass-to-charge ratio of a molecule?
a. Edman degradation
b. affinity chromatography
c. diagonal electrophoresis
d. MALDI-TOF
e. SDS-PAGE
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