BACE Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A heat-stable DNA polymerase is a key component used in which technique?
A. Gel electrophoresis
B. Polymerase chain reaction (PCR)
C. DNA ligation
D. Spectrophotometry
Rationale: Heat-stable polymerases (like Taq polymerase) can withstand the
repeated high-temperature denaturation cycles required in PCR.
2. Restriction enzymes (e.g., EcoRI) are used for:
A. Joining pieces of DNA
B. Digesting DNA at specific sequences
C. Amplifying DNA
D. Measuring DNA concentration
Rationale: Restriction enzymes cut DNA at specific recognition sequences, enabling
fragment analysis or cloning.
3. A horizontal gel electrophoresis box is typically used for:
A. Running protein gels (PAGE)
B. Running DNA gels
,C. Measuring absorbance
D. PCR amplification
Rationale: Horizontal gel setups (typically agarose) are the standard format for
separating and visualizing DNA fragments.
4. A vertical gel electrophoresis box is typically used for:
A. Running DNA gels
B. Running protein gels (PAGE)
C. DNA sequencing
D. DNA ligation
Rationale: Vertical setups (polyacrylamide gel electrophoresis, PAGE) are the
standard format for separating proteins.
5. DNA ligase functions to:
A. Cut DNA at specific sites
B. Join pieces of DNA together
C. Amplify DNA fragments
D. Denature DNA strands
Rationale: Ligase catalyzes the formation of phosphodiester bonds, sealing breaks
or joining DNA fragments — essential for cloning.
6. Which instrument is used to measure protein or DNA concentration?
A. Gel electrophoresis box
B. Spectrophotometer
C. Water bath
D. Centrifuge
,Rationale: A spectrophotometer measures light absorbance, which correlates with
nucleic acid or protein concentration in solution.
7. E. coli is an example of a eukaryote.
A. True
B. False
Rationale: E. coli is a prokaryote (bacterium), lacking a membrane-bound nucleus
and other eukaryotic organelles.
8. According to Cell Theory: (Select all that apply)
A. All life forms are made from one or more cells
B. Cells only arise from pre-existing cells
C. The cell is the smallest form of life
D. Cells can spontaneously generate from non-living matter
Rationale: These three tenets form the foundational principles of cell theory;
spontaneous generation was disproven and contradicts this theory.
9. Which department ensures all products meet standards of quality in the
manufacturing process?
A. Research and Development
B. Quality Assurance (QA)
C. Manufacturing
D. Sales
Rationale: QA is specifically responsible for verifying and maintaining product
quality standards throughout production.
, 10. Which department identifies candidate biopharmaceutical drugs?
A. Quality Assurance
B. Research and Development (R&D)
C. Manufacturing
D. Regulatory Affairs
Rationale: R&D is responsible for discovering and developing new drug candidates
before they move toward production.
11. Which department makes commercial quantities of a biopharmaceutical drug?
A. Research and Development
B. Quality Assurance
C. Manufacturing
D. Marketing
Rationale: Manufacturing is specifically tasked with scaling up production to
commercial volumes once a drug is developed and approved.
12. Which bacterial cell component is commonly isolated and used to digest DNA?
A. Plasmid
B. Restriction enzyme
C. Ribosome
D. Cell wall
Rationale: Restriction enzymes, naturally produced by bacteria as a defense
mechanism, are isolated and used in labs to cut DNA at specific sites.
13. Which structure regulates the flow of molecules into and out of the cell?
A. Nucleus
B. Plasma membrane
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A heat-stable DNA polymerase is a key component used in which technique?
A. Gel electrophoresis
B. Polymerase chain reaction (PCR)
C. DNA ligation
D. Spectrophotometry
Rationale: Heat-stable polymerases (like Taq polymerase) can withstand the
repeated high-temperature denaturation cycles required in PCR.
2. Restriction enzymes (e.g., EcoRI) are used for:
A. Joining pieces of DNA
B. Digesting DNA at specific sequences
C. Amplifying DNA
D. Measuring DNA concentration
Rationale: Restriction enzymes cut DNA at specific recognition sequences, enabling
fragment analysis or cloning.
3. A horizontal gel electrophoresis box is typically used for:
A. Running protein gels (PAGE)
B. Running DNA gels
,C. Measuring absorbance
D. PCR amplification
Rationale: Horizontal gel setups (typically agarose) are the standard format for
separating and visualizing DNA fragments.
4. A vertical gel electrophoresis box is typically used for:
A. Running DNA gels
B. Running protein gels (PAGE)
C. DNA sequencing
D. DNA ligation
Rationale: Vertical setups (polyacrylamide gel electrophoresis, PAGE) are the
standard format for separating proteins.
5. DNA ligase functions to:
A. Cut DNA at specific sites
B. Join pieces of DNA together
C. Amplify DNA fragments
D. Denature DNA strands
Rationale: Ligase catalyzes the formation of phosphodiester bonds, sealing breaks
or joining DNA fragments — essential for cloning.
6. Which instrument is used to measure protein or DNA concentration?
A. Gel electrophoresis box
B. Spectrophotometer
C. Water bath
D. Centrifuge
,Rationale: A spectrophotometer measures light absorbance, which correlates with
nucleic acid or protein concentration in solution.
7. E. coli is an example of a eukaryote.
A. True
B. False
Rationale: E. coli is a prokaryote (bacterium), lacking a membrane-bound nucleus
and other eukaryotic organelles.
8. According to Cell Theory: (Select all that apply)
A. All life forms are made from one or more cells
B. Cells only arise from pre-existing cells
C. The cell is the smallest form of life
D. Cells can spontaneously generate from non-living matter
Rationale: These three tenets form the foundational principles of cell theory;
spontaneous generation was disproven and contradicts this theory.
9. Which department ensures all products meet standards of quality in the
manufacturing process?
A. Research and Development
B. Quality Assurance (QA)
C. Manufacturing
D. Sales
Rationale: QA is specifically responsible for verifying and maintaining product
quality standards throughout production.
, 10. Which department identifies candidate biopharmaceutical drugs?
A. Quality Assurance
B. Research and Development (R&D)
C. Manufacturing
D. Regulatory Affairs
Rationale: R&D is responsible for discovering and developing new drug candidates
before they move toward production.
11. Which department makes commercial quantities of a biopharmaceutical drug?
A. Research and Development
B. Quality Assurance
C. Manufacturing
D. Marketing
Rationale: Manufacturing is specifically tasked with scaling up production to
commercial volumes once a drug is developed and approved.
12. Which bacterial cell component is commonly isolated and used to digest DNA?
A. Plasmid
B. Restriction enzyme
C. Ribosome
D. Cell wall
Rationale: Restriction enzymes, naturally produced by bacteria as a defense
mechanism, are isolated and used in labs to cut DNA at specific sites.
13. Which structure regulates the flow of molecules into and out of the cell?
A. Nucleus
B. Plasma membrane
