MAS115
Laboratory Procedures & Techniques
Finals Exam (Qns & Ans)
2025
General Instructions
1. Read All Questions Carefully: Make sure you understand each question.
2. Time Management: You have a specific amount of time to complete the exam.
Keep an eye on the clock and pace yourself.
3. Allowed Materials: Only use materials that are explicitly allowed. Unauthorized
materials can lead to disqualification.
4. ANS Format: Follow the required format for your ANS. For example, multiple-
choice questions might need you to select the best ANS, while essay questions
require detailed responses.
5. Academic Integrity: Adhere to the university's honor code. Any form of cheating or
plagiarism is strictly prohibited.
6. Technical Requirements: Ensure your computer and internet connection are
stable. For online exams, you might need a webcam and microphone for proctoring
purposes.
7. Submission: Submit your ANS before the time expires. Late submissions might
not be accepted.
©2024/2025
,1. Which of the following tests is primarily used for the
diagnosis of diabetes mellitus?
A) Complete blood count
B) Hemoglobin A1c
C) Comprehensive metabolic panel
D) Thyroid function tests
Correct ANS: B
Rationale: The Hemoglobin A1c test measures the average
blood glucose levels over the previous 2-3 months, forming a key
diagnostic criterion for diabetes mellitus.
2. What is the primary purpose of a gram stain in
microbiological studies?
A) To identify viral infections
B) To classify bacteria
C) To measure antibiotic resistance
D) To detect fungal infections
Correct ANS: B
©2024/2025
, Rationale: A gram stain is used to classify bacteria into two
groups (Gram-positive and Gram-negative) based on their cell
wall characteristics.
3. The term 'cytogenetics' refers to which of the following?
A) Study of cellular respiration
B) Study of gene structure and function
C) Study of chromosomes and genetic disorders
D) Study of protein synthesis
Correct ANS: C
Rationale: Cytogenetics is the branch of genetics that studies
the structure and function of chromosomes, often in relation to
genetic abnormalities.
4. In which of the following processes would you expect to see
the use of PCR (Polymerase Chain Reaction)?
A) Hemoglobin solubility testing
B) Blood typing
C) DNA amplification
D) Serum protein electrophoresis
Correct ANS: C
©2024/2025
, Rationale: PCR is a molecular biology technique used to
amplify DNA, making it a vital tool in genetic research and
diagnostics.
5. In the context of laboratory safety, which of the following
practices is essential when handling biological specimens?
A) Eating or drinking in the lab
B) Wearing gloves and protective eyewear
C) Disposing of all waste in regular trash bins
D) Ignoring spills
Correct ANS: B
Rationale: Wearing gloves and protective eyewear is crucial
for personal protection and to prevent contamination when
handling biological specimens.
Fill-in-the-Blank Questions
6. The normal range for blood glucose levels in adults is
generally considered to be between ___ and ___ mg/dL.
Correct ANS: 70, 99
Rationale: Normal fasting blood glucose levels are typically
between 70 and 99 mg/dL.
©2024/2025
Laboratory Procedures & Techniques
Finals Exam (Qns & Ans)
2025
General Instructions
1. Read All Questions Carefully: Make sure you understand each question.
2. Time Management: You have a specific amount of time to complete the exam.
Keep an eye on the clock and pace yourself.
3. Allowed Materials: Only use materials that are explicitly allowed. Unauthorized
materials can lead to disqualification.
4. ANS Format: Follow the required format for your ANS. For example, multiple-
choice questions might need you to select the best ANS, while essay questions
require detailed responses.
5. Academic Integrity: Adhere to the university's honor code. Any form of cheating or
plagiarism is strictly prohibited.
6. Technical Requirements: Ensure your computer and internet connection are
stable. For online exams, you might need a webcam and microphone for proctoring
purposes.
7. Submission: Submit your ANS before the time expires. Late submissions might
not be accepted.
©2024/2025
,1. Which of the following tests is primarily used for the
diagnosis of diabetes mellitus?
A) Complete blood count
B) Hemoglobin A1c
C) Comprehensive metabolic panel
D) Thyroid function tests
Correct ANS: B
Rationale: The Hemoglobin A1c test measures the average
blood glucose levels over the previous 2-3 months, forming a key
diagnostic criterion for diabetes mellitus.
2. What is the primary purpose of a gram stain in
microbiological studies?
A) To identify viral infections
B) To classify bacteria
C) To measure antibiotic resistance
D) To detect fungal infections
Correct ANS: B
©2024/2025
, Rationale: A gram stain is used to classify bacteria into two
groups (Gram-positive and Gram-negative) based on their cell
wall characteristics.
3. The term 'cytogenetics' refers to which of the following?
A) Study of cellular respiration
B) Study of gene structure and function
C) Study of chromosomes and genetic disorders
D) Study of protein synthesis
Correct ANS: C
Rationale: Cytogenetics is the branch of genetics that studies
the structure and function of chromosomes, often in relation to
genetic abnormalities.
4. In which of the following processes would you expect to see
the use of PCR (Polymerase Chain Reaction)?
A) Hemoglobin solubility testing
B) Blood typing
C) DNA amplification
D) Serum protein electrophoresis
Correct ANS: C
©2024/2025
, Rationale: PCR is a molecular biology technique used to
amplify DNA, making it a vital tool in genetic research and
diagnostics.
5. In the context of laboratory safety, which of the following
practices is essential when handling biological specimens?
A) Eating or drinking in the lab
B) Wearing gloves and protective eyewear
C) Disposing of all waste in regular trash bins
D) Ignoring spills
Correct ANS: B
Rationale: Wearing gloves and protective eyewear is crucial
for personal protection and to prevent contamination when
handling biological specimens.
Fill-in-the-Blank Questions
6. The normal range for blood glucose levels in adults is
generally considered to be between ___ and ___ mg/dL.
Correct ANS: 70, 99
Rationale: Normal fasting blood glucose levels are typically
between 70 and 99 mg/dL.
©2024/2025
