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Discussion
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Biochemistry
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Protein Synthesis
See What Others Are Saying!
Question
Translation in prokaryotes begins by the formation of a 30S initiation complex between the
Options
A. 30S ribosomal subunit, mRNA, initiation factors and N-fMet tRNA
B. 30S ribosomal subunit, tRNA and initiation factors
C. 30S ribosomal subunit and mRNA only
D. 30S ribosomal subunit, mRNA and initiation factors
Correct Answer
30S ribosomal subunit, mRNA, initiation factors and N-fMet tRNA
More questions
1. Which pair of amino acids absorbs the most UV light at 280 nm?
Options
A. Threonine & Histidine
B. Trp & Tyrosine
C. Cystein & Asparagine
D. Phenylalnine & Proline
Show Answer
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Discuss
Correct Answer: Trp & Tyrosine
2. The peptide bond in proteins is
Options
A. only found between proline residues
B. usually cis unless proline is the next amino acid
C. usually trans unless proline is the next amino acid
D. is planar because of steric hinderance
Show Answer
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Discuss
Correct Answer: usually trans unless proline is the next amino acid
3. In cells having organelles, the steps of the Krebs cycle and the electron transport system occur in the
Options
A. cell membrane
B. mitochondria
C. endoplasmic reticulum
D. none of these
Show Answer
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Discuss
Correct Answer: mitochondria
4. ?-Lymphocytes are often called simply
Options
A. B cells
B. T cells
C. T Lymphocytes
D. none of these
Show Answer
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Discuss
Correct Answer: B cells
5. Which of these hormones is a catecholamine?
Options
A. Follitropin
B. Norepinephrine
C. Tetraiodothyronine
D. Tetrahydrofolate
Show Answer
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Discuss
Correct Answer: Norepinephrine
6. Which of these is a type of specific defense against pathogens?
Options
A. Lymphocytes
B. Macrophages
C. Phagocytes
D. Leukocytes
Show Answer
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Discuss
Correct Answer: Lymphocytes
7. The HIV virus infects primarily
Options
A. brain cells
B. cells in the immune system
C. red blood cells
D. liver cells
Show Answer
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Discuss
Correct Answer: cells in the immune system
8. Which of the following is the reduced form of a temporary electron carrier molecule?
Options
A. FADH
2
B. ATP
C. NADP
+
D. CO
2
Show Answer
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Discuss
Correct Answer: FADH
2
9. Signal peptide protein removal that is translocated across a membrane is accomplished by
Options
A. fMet aminopeptidase
B. trypsin
C. signal peptidase
D. chymotrypsin
Show Answer
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Discuss
Correct Answer: signal peptidase
10. Antigen, when injected in the body activates its specific lymphocytes in the
Options
A. blood circulation
B. draining lymph nodes
C. MALT (mucosa associated
D. spleen lymphoid tissue
Show Answer
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Discuss
Correct Answer: draining lymph nodes
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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