Note: For systematic learning, you can check the index page of the Instruments in Forensic Science. Here, we listed all the MCQs based on the NTA UGC syllabus.

1. Technique based on the differential rate of migration of analytes through a buffered medium for the quantitative and qualitative determination of ionic compound is known as:

  1. Electrophoresis
  2. Chromatography
  3. Spectrometry
  4. Distillation

Answer and Explanation

2. Match the instruments with the material analyzed:

InstrumentMaterial
(a) Electron microscope(i) Bullet
(b) Electrophoresis(ii) Alcohol
(c) GLC(iii) Hair
(d) Comparison Microscope(iv) Blood
 (a)(b)(c)(d)
1.(iii)(iv)(ii)(i)
2.(i)(ii)(iv)(iii)
3.(ii)(i)(iii)(iv)
4.(iv)(iii)(ii)(i)

Answer and Explanation

3. Which of these techniques is used to separate serum?

  1. GLC
  2. PCR
  3. Electrophoresis
  4. Both (2) and (3)

Answer and Explanation

4. Which one of the following statements is true about the migration of biomolecules in electrophoresis?

  1. The rate of migration is directly proportional to the resistance of the medium
  2. Rate of migration is directly proportional to the current
  3. Low voltage is used for separation of high mass molecules
  4. Rate of migration is inversely proportional to the current

Answer and Explanation

5. At pH 6 glycine behaves as

  1. Anion
  2. Cation
  3. Zwitterion
  4. Inorganic ion

Answer and Explanation

6. Gel electrophoresis is useful in the identification of the following:

  1. Blood
  2. Alkaloids
  3. Insecticides
  4. All the above

Answer and Explanation

7. In high voltage electrophoresis, increasing the voltage applied to the electrophoretic plates extend the separation capabilities to the substance with :

  1. Low molecular weight
  2. High molecular weight
  3. Equal molecular weight
  4. None of the above

Answer and Explanation

8. Match the following:

List-IList-II
(a) Gel electrophoresis(i) Examination of synthetic fiber
(b) Polarising Microscope(ii) Matching of firing pin mark
(c) Atomic Absorption Spectroscopy(iii) Enzyme typing
(d) Comparison Microscope(iv) Estimation of metals
 (a)(b)(c)(d)
1.(i)(ii)(iii)(iv)
2.(iii)(i)(iv)(ii)
3.(iv)(iii)(ii)(i)
4.(ii)(iv)(iii)(i)

Answer and Explanation

9. PGM, ESD, and GLO-I enzymes can be analyzed on a single plate by

  1. Single system of electrophoresis
  2. Multi-system of electrophoresis
  3. Thick gel electrophoresis
  4. None of the above

Answer and Explanation

10. Different dye constituents of ink can be separated with the help of

(i) TLC  (ii) VSC  (iii) Electrophoresis  (iv) ESDA

  1.  (i) and (ii) are correct.
  2.  (ii) and (iii) are correct.
  3.  (i) and (iii) are correct.
  4.  (i) and (iv) are correct.

Answer and Explanation

11. Serum protein polymorphism are demonstrated by

  1. HPLC
  2. Centrifugation
  3. GC-MS
  4. Electrophoresis

Answer and Explanation

12. Conventional electrophoretic techniques resolve allelic products of PGM locus into one of these phenotypes:

  1. 1, 1-2 and 2
  2. 1, 1-1 and 2
  3. 1, 2-2 and 2
  4. 2, 1-1 and 1

Answer and Explanation

13. In capillary electrophoresis, which flow causes the movement of electrolytes through the tube?

  1. Micro-osmatic flow
  2. Electro-osmatic flow
  3. Macro-osmatic flow
  4. None of the above

Answer and Explanation

14. In an SDS-PAGE:

  1. Proteins are denatured by SDS
  2. Proteins have the same charge to-mass ratio
  3. Smaller proteins migrate more rapidly
  4. All of the above

Answer and Explanation

15. In capillary electrophoresis the internal diameter of fused-quartz capillary ranges between:

  1. 50 to 150 nm
  2. 20 to 100 µm
  3. 5 to 15 mm
  4. 1 to 2 cm

Answer and Explanation

Note: Jump to the main page of Instrumentation MCQs in Forensic Science.

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