Test Bank - Molecular Diagnostics: Fundamentals, Methods, and
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ly Clinical Applications, 3rd Edition (Buckingham, 2019), Chapter
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ly 1-15 | All Chapters Covered || complete A+ Guide
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BestGuidesStuvia
,TABLE OF CONTENT
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Chapter 1: Nucleic Acids and Proteins
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Chapter 2: Gene Expression and Epigenetics
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Chapter 3: Nucleic Acid Extraction Methods
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Chapter 4: Resolution and Detection of Nucleic Acids
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Chapter 5: Analysis and Characterization of Nucleic Acids and Proteins
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Chapter 6: Nucleic Acid Amplification
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Chapter 7: Chromosomal Structure and Chromosomal Mutations
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Chapter 8: Gene Mutations
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Chapter 9: DNA Sequencing
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Chapter 10: DNA Polymorphism and Human Identification
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Chapter 11: Detection and Identification of Microorganisms
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Chapter 12: Molecular Detection of Inherited Diseases
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Chapter 13: Molecular Oncology
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Chapter 14: DNA-Based Tissue Typing (HLA Typing)
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Chapter 15: Quality Assurance and Quality Control in the Molecular Laboratory
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,Test Bank for Chapter:1 Nucleic Acids and Proteins
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Source: Buckingham, L. (2019). Molecular Diagnostics: Fundamentals, Methods, and
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Clinical Applications (3rd ed.)
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Multiple Choice Questions (30 Questions) ly ly ly ly
1. Which nitrogenous base is found exclusively in RNA and replaces thymine found in
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DNA?
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a) Adenine
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b) Guanine
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c) Cytosine
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d) Uracil
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Answer: d) Uracil ly ly
Explanation: Uracil is present in RNA instead of thymine. It pairs with adenine during
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transcription. This difference is critical for distinguishing RNA from DNA in diagnostic
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assays and for RNA stability/function.
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2. The backbone of a DNA strand consists of alternating:
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a) Bases and sugars
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b) Phosphates and bases
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c) Sugars and phosphates
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d) Nitrogenous bases and hydrogen bonds
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, Answer: c) Sugars and phosphates
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*Explanation: The sugar-phosphate backbone is formed by phosphodiester bonds
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between the 3' carbon of one deoxyribose and the 5' carbon of the next. This structure
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provides stability and directionality (5'→3') essential for replication and transcription.*
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3. Which type of RNA carries amino acids to the ribosome during protein synthesis?
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a) mRNA
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b) rRNA
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c) tRNA
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d) snRNA
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Answer: c) tRNA ly ly
*Explanation: Transfer RNA (tRNA) has an anticodon that base-pairs with mRNA codons
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and carries a specific amino acid at its 3' end. This adaptor function is fundamental to
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translation accuracy in diagnostic protein analysis.*
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4. The primary structure of a protein refers to its:
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a) Three-dimensional folded shape
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b) Alpha helix and beta sheet arrangements
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c) Linear sequence of amino acids
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d) Subunit assembly pattern
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Answer: c) Linear sequence of amino acids
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Explanation: Primary structure is the covalent backbone of amino acids linked by peptide
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bonds. This sequence determines higher-order folding and is directly encoded by genes,
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making it targetable by DNA sequencing in molecular diagnostics.
ly ly ly ly ly ly ly ly ly
ly ly ly ly ly ly ly
ly Clinical Applications, 3rd Edition (Buckingham, 2019), Chapter
ly ly ly ly ly ly
ly 1-15 | All Chapters Covered || complete A+ Guide
ly ly ly ly ly ly ly ly
BestGuidesStuvia
,TABLE OF CONTENT
ly ly
Chapter 1: Nucleic Acids and Proteins
ly ly ly ly ly
Chapter 2: Gene Expression and Epigenetics
ly ly ly ly ly
Chapter 3: Nucleic Acid Extraction Methods
ly ly ly ly ly
Chapter 4: Resolution and Detection of Nucleic Acids
ly ly ly ly ly ly ly
Chapter 5: Analysis and Characterization of Nucleic Acids and Proteins
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Chapter 6: Nucleic Acid Amplification
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Chapter 7: Chromosomal Structure and Chromosomal Mutations
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Chapter 8: Gene Mutations
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Chapter 9: DNA Sequencing
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Chapter 10: DNA Polymorphism and Human Identification
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Chapter 11: Detection and Identification of Microorganisms
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Chapter 12: Molecular Detection of Inherited Diseases
ly ly ly ly ly ly
Chapter 13: Molecular Oncology
ly ly ly
Chapter 14: DNA-Based Tissue Typing (HLA Typing)
ly ly ly ly ly ly
Chapter 15: Quality Assurance and Quality Control in the Molecular Laboratory
ly ly ly ly ly ly ly ly ly ly
,Test Bank for Chapter:1 Nucleic Acids and Proteins
ly ly ly ly ly ly ly
Source: Buckingham, L. (2019). Molecular Diagnostics: Fundamentals, Methods, and
ly ly ly ly ly ly ly ly
Clinical Applications (3rd ed.)
ly ly ly ly
Multiple Choice Questions (30 Questions) ly ly ly ly
1. Which nitrogenous base is found exclusively in RNA and replaces thymine found in
ly ly ly ly ly ly ly ly ly ly ly ly ly
DNA?
ly
a) Adenine
ly
b) Guanine
ly
c) Cytosine
ly
d) Uracil
ly
Answer: d) Uracil ly ly
Explanation: Uracil is present in RNA instead of thymine. It pairs with adenine during
ly ly ly ly ly ly ly ly ly ly ly ly ly
transcription. This difference is critical for distinguishing RNA from DNA in diagnostic
ly ly ly ly ly ly ly ly ly ly ly ly
assays and for RNA stability/function.
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2. The backbone of a DNA strand consists of alternating:
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a) Bases and sugars
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b) Phosphates and bases
ly ly ly
c) Sugars and phosphates
ly ly ly
d) Nitrogenous bases and hydrogen bonds
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, Answer: c) Sugars and phosphates
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*Explanation: The sugar-phosphate backbone is formed by phosphodiester bonds
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between the 3' carbon of one deoxyribose and the 5' carbon of the next. This structure
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provides stability and directionality (5'→3') essential for replication and transcription.*
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3. Which type of RNA carries amino acids to the ribosome during protein synthesis?
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a) mRNA
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b) rRNA
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c) tRNA
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d) snRNA
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Answer: c) tRNA ly ly
*Explanation: Transfer RNA (tRNA) has an anticodon that base-pairs with mRNA codons
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and carries a specific amino acid at its 3' end. This adaptor function is fundamental to
ly ly ly ly ly ly ly ly ly ly ly ly ly ly ly ly
translation accuracy in diagnostic protein analysis.*
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4. The primary structure of a protein refers to its:
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a) Three-dimensional folded shape
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b) Alpha helix and beta sheet arrangements
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c) Linear sequence of amino acids
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d) Subunit assembly pattern
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Answer: c) Linear sequence of amino acids
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Explanation: Primary structure is the covalent backbone of amino acids linked by peptide
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bonds. This sequence determines higher-order folding and is directly encoded by genes,
ly ly ly ly ly ly ly ly ly ly ly ly
making it targetable by DNA sequencing in molecular diagnostics.
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