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Biochemistry
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Transcription and Regulation
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Question
The transcriptional regulatory proteins in eukaryotes which induce transcription usually have
Options
A. at least two distinct domains of protein structure, a DNA binding domain and an activation domain
B. at least two distinct domains of protein structure and a DNA binding domain
C. at least one distinct domains of protein structure, a DNA binding domain and an activation domain
D. none of these
Correct Answer
at least two distinct domains of protein structure, a DNA binding domain and an activation domain
More questions
1. In the normal breakdown of phenylalanine, it is initially degraded to
Options
A. fumarate
B. tyrosine
C. lysine
D. phenylpuruvate
Show Answer
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Discuss
Correct Answer: tyrosine
2. Carbon fixation requires the expenditure of ATP molecules which is generated by
Options
A. formation of glucose during the Calvin cycle
B. replenishment of chlorophyll
C. ETS (electron transfer system) during the light reactions
D. none of the above
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Correct Answer: ETS (electron transfer system) during the light reactions
3. The maximum energy per gram on oxidization is yielded from
Options
A. fat
B. protein
C. glycogen
D. starch
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Correct Answer: fat
4. Nucleic acids can be analyzed experimentally by their
Options
A. molecular weight
B. absorption of visible light
C. absorption of uv light
D. none of these
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Correct Answer: absorption of uv light
5. Protein folding is
Options
A. automatic, mediated by the protein itself
B. mediated by other proteins called chaperones
C. mediated by the ribosomes
D. none of the above
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Correct Answer: mediated by other proteins called chaperones
6. Which of the following provide specific defense against viruses and bacteria?
Options
A. T cells
B. B cells
C. Complement
D. inflammation
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Correct Answer: B cells
7. What was the first protein whose complete tertiary structure was determined?
Options
A. Lysozyme
B. Myoglobin
C. Pancreatic ribonuclease
D. Pancreatic DNase
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Correct Answer: Myoglobin
8. Which of the following cell organelles are expected to be associated with motor proteins?
Options
A. Smooth ER
B. Vesicles
C. Plasma membrane
D. Chloroplasts
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Correct Answer: Vesicles
9. A simple harmonic oscillator may absorb energy
Options
A. at anytime.
B. when the frequencies match exactly
C. when the amplitudes are the same.
D. at no time.
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Correct Answer: when the frequencies match exactly
10. Which of the following statements is incorrect?
Options
A. Protein G contains both a-helix and P-sheet
B. Protein G contains only a-helix
C. Fatty acid binding protein contains largely P-sheet
D. Hemoglobin contains four sub-units
Show Answer
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Correct Answer: Protein G contains only a-helix
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More in Biochemistry:
Allosteric Effects
Amino Acid Metabolism
Anti Bodies
Antigen
ATP Synthesis and Fatty Acid Oxidation
Carbohydrate
Cell Signalling and Transduction
Cell Structure and Compartments
Chromatography
Disease Associated with Immune System
DNA Structure and Replication
Enzymes
FT IR Spectroscopy
Gas Chromatography
Gel Electrophoresis
Genetic Code and Regulation
Genetic Regulation Prokaryotes
Glycolysis
HPLC
Immune Response
Immune System
Immunological Techniques
Lipid
Membrane Structure and Functions
Minerals
Nitrogen Metabolism
NMR Spectroscopy
Nucleic Acids
Oxidative Phosphorylation
Photosynthesis and Respiration
Polymerase Chain Reaction
Protein and Nucleic Acid Interactions
Protein Purification
Protein Stability
Protein Structure
Protein Synthesis
Recombinant DNA Technology
RNA Structure
Spectroscopy
Structure and Properties of Amino Acids
Structure and Properties of Peptides
TCA Cycle
Thermodynamics and Free Energy
Transcription and Regulation
UV Luminance Spectroscopy
Vitamins and Coenzymes
Water, pH and Macromolecules